There's a substantial amount of time between the Rams' fourth organized team activity practice and the team's Week 1 matchup against the Colts.

But there was a bit of a shake up on the offensive line for Tuesday's session, with third-year lineman Jamon Brown taking snaps with the first team at right tackle. Greg Robinson had been previously working at that spot, and head coach Sean McVay said the two players are challenging for the position.

"Jamon Brown is a guy who has competed really well. He's done a nice job competing at guard and at tackle. We gave him and Greg a chance to compete. And really excited to go back and look at the tape," McVay said on Tuesday. "But I think what we've seen from Jamon — really going back to last week — [are] a lot of encouraging things. And Greg's done some good things as well. So until I really see this practice, it's hard for us to say exactly how it went today. But I think it's good to let guys compete and see how they do."

According to McVay, Tuesday's practice was the first where Brown has taken snaps with the first-team offensive line. Brown said the opportunity only recently materialized.

"It was just kind of a suggestion last week, just because they're trying to plug in guys and evaluate guys at different spots and just play all over," Brown said. "And one thing that I thought about it was just kind of show the coaches and the team that I'm a versatile guy — I can play pretty much anywhere on the line. And that's my thoughts, just being able to plug wherever they need me."

The Louisville product said he didn't necessarily anticipate being asked to play tackle coming into the offseason program. But he did embrace being the swing offensive lineman — someone who could play any position when asked.

"I've been playing guard, I've been playing tackle, and I'm just trying to continue to build off that," Brown said.

But what got Brown elevated to taking first-team snaps at right tackle?

"I think what you like about Jamon is his demeanor. I think he's got a great disposition where he's willing to be coached," McVay said. "He's got good movement for a big, physical player. And when he gets his hands on people, he certainly does a nice job of securing the line of scrimmage — whether that's in the run game or in protection when he jump-sets people. But what he showed last week was very encouraging."

Brown admitted he has some rust to knock off when it comes to playing right tackle. He's worked exclusively as a guard — both on the right and left — since entering the league as a third-round pick in 2015.

"The majority of the stuff comes back pretty natural, just because that's what I had been doing for the four years that I was in college. So it's kind of easy to knock the rust off and get back to doing what I did," Brown said. "But it's been going pretty good. I don't think there's too much rust."

But there is an adjustment when it comes to playing speed.

"Being in the inside playing at guard, things happen a lot quicker, a lot faster. But once you move out to tackle, you kind of get on the island, and you start to play in a little more space," Brown said. "So just getting adjusted to the speed and how I encounter different guys on the edge and play different guys on the edge."

Brown taking snaps at right tackle does put back in place a partnership with a member of his draft class. He and Rob Havenstein came in as the club's right guard and right tackle, respectively. Now those positions are flipped.

"It's always good to be able to work back with Rob," Brown said. "It's been a little different, me being on the outside of him. We had kind of got used to him being on the edge and me being on the inside. But that chemistry that we have, we just fit right in."

And so while Brown has played himself into the mix at right tackle, nothing is set in stone — particularly because it's still the month of May.

"I think Greg's shown some good signs. Anytime that you transition from the left to the right, there is an adjustment period. It was good to see Jamon Brown, he's continuing to grow and improve," McVay said. "That's a position where we feel like we've got some good options at that spot. And we'll continue to evaluate that moving forward."