Cubs' Bryant exits with pain in left foot

On Saturday night, Cubs fans heard five words they least wanted to hear: Kris Bryant exited the game.

MLB.com's No. 3 overall prospect left in the second inning after drawing a walk in his lone plate appearance in Triple-A Iowa's 5-3 loss to visiting Salt Lake.

I-Cubs manager Marty Pevey was cautiously optimistic.

"He fouled one off his foot -- that was three days ago -- and he was a little bit sore," Pevey said. "So we had him taken in to get X-rays. There are no results yet. I think tomorrow he'll probably have an MRI. It's all precautionary, of course."

A Cubs spokesman told MLB.com that the X-ray results were inconclusive and confirmed that Bryant will have an MRI on Sunday.

Bryant leads the Minor Leagues with 40 home runs, including 18 in 45 games with Iowa. He worked a walk against Bees starter Chris Volstad in the first inning, then experienced discomfort.

"He walked down to first base, he was jogging down, and he felt uncomfortable," Pevey said.

Bryant stayed in the game on defense for the top of the second and caught a ball in foul territory to retire Salt Lake's Shawn O'Malley. Pevey said he did not know whether the discomfort affected the 22-year-old third baseman's ability to run and move athletically.

"I'm not going to speculate what was on his mind because I don't know," Pevey said. "He jogged down to first base and he felt it. He let our staff know and he's been dealing with it for several days. We thought it was best to play it safe."

Bryant was replaced by Jonathan Mota, and it's unclear when he will return.

"Until we get the results of either the X-Rays or the MRI, I can't even speculate," Pevey added.

Jorge Soler, the Cubs' No. 5 prospect, doubled twice and drove in a run in Saturday's loss.

Roberto Lopez went 2-for-3 with a homer and four RBIs for the Bees.