There has been plenty of conversation about Josh Rosen of late, of how he has played and whether he should play. But when Rosen did come out Sunday in Atlanta, it gave Mike Glennon a chance to get in a game.

Glennon has played his role this season exactly how the Cardinals hoped. He understood once Rosen was drafted he would be third string behind Sam Bradford and the rookie. When Rosen went in, he stepped up to become the backup and a mentor, preparing to play but knowing he wouldn't. And in his brief appearance at the end of the Falcons' game, he was solid, completing 10-of-14 passes for 111 yards and a touchdown to rookie Trent Sherfield.

It was the first game Glennon had played in the regular season since Sept. 28, 2017, when he was playing for the Bears.

"I felt pretty comfortable," said Glennon, who had played against the Falcons many times, not only when he was with the Buccaneers but also last season among his four starts in Chicago. "Luckily we ran the plays I am comfortable with. I don't get too many reps out there (in practice.)"

Glennon noted a couple of cool things he got of what might be his only 2018 work. He completed three passes for 54 yards to Larry Fitzgerald, becoming the 20th quarterback ever to complete a pass to Fitz -- more impressive because even in practice, he has rarely worked with the future Hall of Famer.

"I was pretty excited to go into the record book of the quarterbacks that have thrown to him," Glennon said.

Throwing the TD to Sherfield was important to him too, since it was Sherfield's first score as a pro.

"I remember who I threw my first touchdown to," Glennon said. "I know I threw Mike Evans' first touchdown to him. I did to Tarik Cohen as well. So I think it's cool that when these guys look back at their first (NFL) touchdown, I'm a small part of that and they'll think of me."

Glennon's first TD pass, by the way? Against the Cardinals in 2013, to Mike Williams.