"The 49ers were busy securing undrafted free agents into Sunday evening. The club reached agreements with Purdue's Kory Sheets, whose 4.39 in the 40 was the fastest among running backs at the combine, as well as Stanford defensive end Pannel Egboh and Ohio State offensive tackle Alex Boone, among others.

"The 49ers would not confirm the agreements waiting until the deals are officially signed - but general manager McCloughan said he expects the team to add from eight to 12 undrafted players."