Harris said he liked the speed and decisiveness in which he played with last weekend and hopes to build off of it heading into the final preseason game in Santa Clara.
"Just going out there with the same mentality I had last week. Really intense and playing it like it might be my last down," Harris said. "I want to go out there and play each and every rep like I played last game.
"I really like the way I played and just use it as another game to get ready for the regular season," Harris added.
Lambert-Smith is on a similar boat as he knows the countdown is on once the next preseason game wraps up.
"Just trying to put another good week of practice together with the guys, continue to build on the chemistry between me and the QBs in the room," Lambert-Smith said. "Just sharpening up on the details because we're getting to the backend portion of the preseason getting ready for the season to start.
"Getting all the details and getting ready to go," Lambert-Smith added.
With a little over two weeks to go before the Chargers kickoff the season in Brazil, Roman feels as if the pair of rookie receivers are on the right track.
The Chargers offensive coordinator said that it's been a build up process, like it is for every receiver, and the pair have responded well to everything in their way.
"There's nothing quite like the regular season. Right now, I think they're on schedule," Roman said. "I think they're doing a really good job of competing. Every play is not perfect right now, there's a lot of teachable moments which are what you're begging for, especially for young players. You're looking at all those moments.
"First, we're going to go through this, then once we get through that this will pop up, we'll get through that then we've got to press upon how important this is," Roman added. "There's a whole progression to it."