The 5-foot-11, 198-pound Givens amassed 2,473 receiving yards on 163 receptions in his career. Last season, Givens set a school single-season record with 1,330 yards. He caught 83 passes and had nine touchdowns.
Givens also can help the Rams in the return game. Givens returned kicks and had 45 rushing attempts at Wake Forest. Givens finished with 3,509 all-purpose yards.
He did not visit Rams Park before the draft, but Givens said St. Louis talked with him at the NFL combine.
"I thought they really liked me a lot," Givens said. "I thought they were going to get me but then they got Brian Quick and then I thought, `OK, they're not going to get me anymore.' Then today, I was pleasantly surprised."
Givens brings speed to the Rams. He was clocked at 4.39 seconds in the 40-yard dash. That was one of the fastest times among the 300-plus players at the combine.
He is looking forward to joining Quick to give Bradford some inviting targets. In fact, Givens brought up a Rams reference from the past.
"We're going to complement each other well. That's the plan," Givens said about himself and Quick. "We're going to come in and work hard and put our best foot forward and try to get `The Greatest Show on Turf' back going again."
The Rams got the 152nd pick in the draft in their Thursday trade with Dallas that allowed the Cowboys to take the Rams' No. 6 slot in the first round while St. Louis dropped down to No. 14. St. Louis picked the 6-foot-4, 329-pound Watkins with the choice. Watkins can play inside and outside on the offensive line. Watkins played both guard positions in his junior year at South Carolina.
The Rams have an opening at left guard. Unrestricted free agent Jacob Bell left to sign with Cincinnati.
As a senior, Watkins played both tackle positions and one game at guard. He started 27 games the past two seasons.
"I played every position on the line at South Carolina except center," Watkins said. "I just do whatever coach tells me to do. If they wanted me to long snap, I would have done that, too."
"I had no idea I was going to St. Louis," said Watkins. "I was a lot surprised. I was just waiting around and hoping to hear my name called and it got called and now I'm ready to get up there to St. Louis and go to work."
South Carolina coach Steve Spurrier gave Watkins his nickname of "Rock."
"Coach Spurrier said it was a little hard to say Rokevious so he said we're just going to call you Rock once I got there," Watkins said.