Thank you, Rob and good morning everyone. As a reminder, on March 17th, 2020, we withdrew our previously disclosed financial guidance for the first quarter of 2020 in response to the uncertainty created by various government-mandated site closers stemming from COVID-19. Notwithstanding this disruptions caused by COVID-19, however, other than revenue, which was $6 million below the low end of our guidance range, our other results were firmly within the ranges originally provided. Our first quarter revenue came in at $1.32 billion, lower than originally expected, mainly due to an estimated negative impact of approximately $85 million from COVID-19. Revenue decreased 12% sequentially and it was down 8%. Year-over-year our non IFRS operating margin was 2.9%, up 50 basis points year-over-year and flat sequentially. Non-IFRS adjusted earnings per share were $0.16 compared to $0.12 for the first quarter of 2019. Our ATS segment revenue was 41% of our consolidated revenue, up from 40% compared to the first quarter of last year. ATS revenue was down 7% sequentially and down 5% compared to last year. In addition, the impact from COVID-19, the year-over-year decline was driven by reduced revenue in energy due to previously planned disengagement and weakness in our A&D business, partially offset by improvements in capital equipment demand. The sequential decline was mainly due to COVID-19 materials and manufacturing constraints and demand weakness at A&D, driven by the 737 MAX halt, partially offset by improvement in capital equipment. Our CCS segment revenue was down 15% sequentially and down 10% year-over-year. The year-over-year decline was primarily driven by portfolio shaping actions. Within our CCS segment, the communications and market represented 39% of our consolidated first quarter revenue, the same as the first quarter of last year. Communications revenue in the quarter was down 10% year-over-year, largely due to COVID-19 impact, partly offset by continuing strength in our JDM business Our enterprise end market represented 20% of consolidated revenue in the first quarter, down from 21% in the same period last year. Enterprise revenue in the quarter was down 10% year-over-year, largely due to planned disengagements as part of our CCS segment portfolio review, partly offset by higher program specific demand, including in JDM programs. Our top 10 customers represented 66% of revenue for the quarter, down from 68% last quarter and up from 62% in the same period of last year. For the first quarter, we had one customer contributing greater than 10% of total revenue compared to two customers year-over-year and sequentially. Turning to segment margins, ATS segment margin of 2.7% was down 30 basis points relative to last quarter due to demand softness related to COVID-19 and headwinds in the A&D business, partly offset by strength in capital equipment. Capital equipment returned to profitability for the first time since the fourth quarter of 2018 and as expected, delivered profitability in the single-digit millions. Year-over-year, ATS segment margin was up 10 basis points as improvements in capital equipment performance more than offset inefficiencies due to COVID-19 and headwinds in A&D. CCS segment margin of 3.0% came in at the high end of our target range of 2% to 3% despite lower than expected revenue, Segment margin was up 10 basis points sequentially and up 70 basis points year-over-year. Both sequential and year-over-year improvements were driven by favorable mix, including strong growth and operating leverage in JDM and continued productivity efforts. Moving to some other financial highlights in the quarter. IFRS net loss for the quarter was negative $3.2 million or negative $0.02 per share compared to net earnings of $90.3 million, or positive $0.66 per share in the same quarter of last year. Earnings per share for the first quarter of 2019 included a $0.75 per share benefit from the sale of our Toronto property. Adjusted gross margin of 7.3% was up 30 basis points sequentially and up 70 basis points compared to last year. Despite lower revenue and negative impacts from COVID-19, sequential and year over year improvements were largely driven by improved mix and productivity. Our adjusted SG&A of $50 million was down $2.5 million sequentially, primarily due to favorable foreign exchange impacts and lower variable spend. Our adjusted SG&A was down $1.0 million from the prior year period, primarily due to foreign exchange benefits. Non-IFRS operating earnings were $38.1 million, down to $5.6 million sequentially and up $3.0 million from the same quarter of last year. Our non-IFRS adjusted effective tax rate for the first quarter was 24% compared to 27%, both sequentially, and for the prior year period. For the first quarter, adjusted net earnings were $20.7 million compared to $15.8 million for the prior year period. Non-IFRS adjusted earnings per share of $0.16 was a $0.04 year-over-year, mainly due to higher non-IFRS operating earnings and lower interest expense. Non-IFRS adjusted ROI see of 9.5% was down 1.1% sequentially and up 1.6% compared to the same quarter of last year. Moving on to working capital, our inventory at the end of the quarter was $1.1 billion, an increase of $80 million sequentially and flat relative to last year. Inventory turns were 4.8, down 0.7 turns sequentially and down 0.2 turns year-over-year. Capital expenditures for the first quarter were $12 million or approximately 1% of revenue. Non-IFRS free cash flow was $54 million in the first quarter compared to $145 million for the same period last year. All but $32 million of our first quarter 2019 cash flow was attributable to the sale of our Toronto property. Cash cycle days in the first quarter were 69 days, up seven days sequentially and flat year-over-year. Our cash deposits at the end of the first quarter of 2020 were $135 million, up $13 million sequentially. As we continue to work with our customers on working capital improvements. We continue to improve our working capital performance and we remain focused on generating more than $100 million of non-IFRS free cash flow in 2020. Moving on to our balance sheet and other key measures. So, let's go continues to maintain a strong balance sheet. Our cash balance at the end of the first quarter was $472 million, down to $7 million sequentially and up $14 million year-over-year as a result of our high cash balance, and our $450 million revolver, which remains on drawn. Celestica's liquidity exceeds $900 million. We believe this liquidity amount is sufficient to meet our current business needs. As a result of continuing free cash flow generation, we were able to make progress in the first quarter towards deleveraging our balance sheet by repaying $61 million of long-term debt. Our gross debt position was $531 million at the end of March, while our net debt was $59 million, down $53 million sequentially and down $177 million from the first quarter of last year. Our gross debt to non-IFRS trailing 12-month adjusted EBITDA leverage ratio improved 0.2 turns sequentially to 2.0 turns. At the end of March, we were compliant with all of our financial covenants under our credit agreement. In the near-term, our priority is to continue to reduce our leverage, providing us with increasing levels of flexibility and reduced interest costs. Over the long-term though, our capital allocation priorities remain the same. We will continue to work towards generating strong free cash flow and plan to return approximately half to shareholders while investing the other half into the business. In the first quarter, we incurred $8 million of restructuring charges, while restructuring costs are forecasted to be lower than anticipated for the Cisco disengagement in 2020. We anticipate taking additional restructuring actions in 2020 associated with adjusting our cost base to reflect shifting demand. As a result, restructuring costs for 2020 will be greater than the forecasted $30 million. We believe that Celestica has a strong operating model and solid balance sheet to weather the current COVID-19 disruption. As we look to the next quarter, we see continued uncertainty surrounding COVID-19. While our operations are largely stabilized, the size and geographic diversity of our network exasperates the high degree of variability surrounding government-imposed workforce restrictions, impacting not only our operations, but that of the global supply base. Therefore, consistent with many of our large customers, we do not believe it would be prudent to provide any specific financial guidance for the second quarter at this time. While we're not providing guidance, we do anticipate the second quarter to be largely in line with our first quarter results should conditions either improve or deteriorate further. I'll now turn the call over to Rob for additional color and an update on our priorities.