49ers GM John Lynch posted a photo of Thomas signing the contract at training camp:
John Lynch @JohnLynch49ers
Pen to paper! Welcome Solly! #brickbybrick https://t.co/WMCBbNsw122017-7-28 17:40:37
The 49ers tabbed Thomas as a future cornerstone along their defensive line with the third pick in this year's draft, marking the third time in as many years the team selected a defensive lineman with a first-round pick following the additions of Arik Armstead in 2015 and DeForest Buckner in 2016.
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The question moving forward, then, revolves around where Thomas will line up when the 2017 season opens since the 6'3", 273-pound force is capable of playing defensive end or defensive tackle in the 49ers' 4-3 scheme.
For now, though, it looks like Thomas will move around quite a bit based on whether the 49ers are in their base defense or a sub-package.
According to ESPN.com's Nick Wagoner, defensive line coach Jeff Zgonina "told Thomas at the combine he would envision him working at left defensive end in coordinator Robert Saleh's 4-3 defensive scheme, with the versatility to move inside to defensive tackle in passing situations."
Whether he's operating as a disruptive force off the edge or knifing through interior offensive linemen to blow up running plays for losses, Thomas should start to wreak havoc in no time.