Danny Kanell explains why he is in favor of the Vikings giving up a first-round pick and a conditional fourth-round pick for QB Sam Bradford. (1:37)

EDEN PRAIRIE, Minn. -- While Sam Bradford puts himself through a crash course to learn the Minnesota Vikings' offense this week, coach Mike Zimmer hasn't scheduled the first test for his new quarterback -- at least not yet.

Zimmer did not name a starting quarterback for Sunday's season opener against the Tennessee Titans, saying Monday that Bradford and Shaun Hill will split first-team snaps this week. The Vikings will see how both quarterbacks perform before deciding on a starter.

Asked what he would need to see from Bradford before deciding he was ready to play, Zimmer said, "It's hard to explain exactly what it would be. Command of the offense. Understanding what we're doing. Know where to go with the ball. Know the checks."

Later, when he was asked if he saw Bradford as a starter at some point this season, Zimmer said, " I don't know. Things change. It's hard to say. I didn't think my quarterback was going to hurt his knee in noncontact drill on Tuesday. Things change. We'll see how it goes."

Sam Bradford turns his focus to the Vikings now, though there's no word yet when his first test will be. AP Photo/Darron Cummings

The Vikings sent their 2017 first-round pick and a conditional 2018 fourth-rounder to the Philadelphia Eagles on Saturday for Bradford, after quarterback Teddy Bridgewater tore his ACL and dislocated his left knee on Tuesday. Bradford arrived in Minnesota on Saturday afternoon and worked with the team for the first time on Sunday, in a practice that was closed to the media.

Monday's practice, Bradford said, went smoother than Sunday's did, but he acknowledged he hasn't had to learn an offense quite this fast before, and said he didn't know precisely when he would be ready.

"That's the goal, you know, to progress to that point to where I feel comfortable enough to get out there and play [on Sunday] if I'm needed to," Bradford said. "But I can't tell you if that's going to be the case or not."

Titans coach Mike Mularkey didn't wait for the Vikings to make an announcement, saying he expects Bradford will start.

"We know what his capabilities are, we've got enough film on him to watch him," Mularkey said. "Again, this is more about us than them. I don't see a complete, big change because of the injury and the trade. ... I would say probably yes [he starts]. He's a very smart quarterback, he's been in the league, there isn't much he hasn't seen. I'd be surprised if he didn't."

Hill, who became the Rams' starting quarterback in 2014 after Bradford tore his ACL, was disappointed by the news of the trade, Zimmer said.

"But Shaun is a great person," Zimmer said. "He came in and I talked to him before it was announced, obviously. And talked to Teddy as well. He is a pro's pro. That's the way he took it."

ESPN's Paul Kuharsky contributed to this report.