After visiting with an abundance of wide receivers and cornerbacks -- deemed the 49ers' two biggest needs -- in the run-up to the draft, the team took a defensive lineman with its first pick.

Ah, but they still have opportunities to restock those other positions, beginning in Rounds 2 and 3 Friday. That's when four wide receivers, Devin Smith of Ohio State, Sammie Coates of Auburn, Devin Funchess of Michigan and Dorial Green-Beckham of Oklahoma are expected to be taken. The team had pre-draft visits with all four.

The 49ers also met with cornerback Jalen Collins of LSU. At 6-1, he has the length Trent Baalke likes in cornerbacks and also played in a hard-nosed conference against tough opponents.

Other areas the 49ers could tap in Rounds 2 and 3 are inside linebacker and the offensive line. Some notable names:

WR Sammie Coates, Auburn

CB Jalen Collins, LSU

ILB Paul Dawson, TCU

WR Dorial Green-Beckham, Oklahoma

OLB Eli Harold, Virginia

OLB Trey Flowers, Arkansas

WR Devin Funchess, Michigan

ILB Eric Kendricks, UCLA

OLB Lorenzo Mauldin, Louisville

ILB Benardrick McKinney, Mississippi State

ILB Denzel Perryman, Miami

OL Jeremiah Poutasi, Utah

CB Eric Rowe, Utah

OL Donovan Smith, Penn State

OLB Preston Smith, Mississippi State

WR Jaelen Strong, Arizona State

CB P.J. Williams, Florida State