Cardinals LB Sean Weatherspoon opts to play into third quarter

TEMPE, Ariz. -- The preseason ended Thursday night with the Arizona Cardinals getting good and bad news. The good news was that running back Chris Johnson looked good and linebacker Sean Weatherspoon played into the third quarter. The bad news, however, was the knee injury suffered by tight end Gerald Christian in the second quarter. He left the sideline on a cart, leaving Arizona with two healthy tight ends on their roster heading into the first week of the season.

Here are some quick thoughts on the Cardinals' 22-20 win over the Denver Broncos:

QB Depth Chart: Thursday night was all about Phillip Sims and Logan Thomas. Sims started and played the first half, while Thomas played the third and fourth quarters. After a solid preseason in which he's looked poised and steady, Sims looked frazzled early in the first quarter but settled down to finish 14-for-22 for 101 yards and a touchdown. Thomas, however, looked composed from the start of the second half, leading the Cardinals on a 51-yard drive for a touchdown.

Maybe That Dude Could Start: Right tackle Earl Watford was the only Cardinal who was truly competing for a starting job. He looked good, but not great. If the coaches aren't comfortable enough with Bradley Sowell on the right side, then Watford could probably hold his own enough for three games.

Who Got Hurt? Tight end Gerald Christian hurt his left knee and left game. He did not return.

A Surprise Player Who Looks Amazing: It all depends on how many wide receivers Arizona wants to keep but Jaxon Shipley has made a case to be kept. He's consistent as a receiver and solid as a returner. It's highly unlikely Arizona keeps enough wide receivers to include Shipley, however.

Rookie Watch: Since Thursday night was basically reserved for all the starters and young veterans, as a group the rookies looked good. Rookie tackle D.J. Humphries continued to struggle against live action, however.

When It Was Starters vs. Starters, We Looked ...: The first-team starters sat out Thursday night's game but the Cardinals who started against Denver struggled to keep the quarterback upright.

One Reason To Freak Out: The right tackle position without Bobby Massie hasn't looked strong the last two games. Earl Watford got the start Thursday and wasn't overly impressive. It'll be interesting to watch next week unfold as to who will start between Watford and Bradley Sowell.

Chris Johnson's debut: The more carries running back Chris Johnson got, the better he looked. He finished with 45 yards on 11 carries but put his vision and quickness to hit holes on display throughout the first half.

Weatherspoon's long day: If inside linebacker Sean Weatherspoon was healthy all of training camp, he'd have been relaxing on the sideline Thursday without playing a down. Instead, after missing all of the Cardinals' padded training camp, Weatherspoon played into the Thursday. He told coach Bruce Arians that he wanted to play in the third quarter after getting a number of snaps in the first half. It was his first game action since 2013.