CHICAGO -- When Reds second baseman Freddy Galvis described the ¡°pop¡± he felt in his left knee that forced him to leave Saturday¡¯s game in Arizona, it sounded like the worst-case scenario.

Galvis, however, underwent an MRI on Sunday, and the results revealed no structural damage -- a sigh of relief for Galvis and the Reds.

¡°He got a good report today. When we saw him go down, we were concerned, so it¡¯s been really positive news since then,¡± manager David Bell said.

Bell also told reporters that the focus will now be on re-strengthening Galvis¡¯ knee. Galvis will have a few more days of rest and will be re-evaluated in a few days, but with just 12 games remaining in the season, it's uncertain if Galvis will see any more game action.

The Reds' shortstop has struggled offensively after a hot August -- when he homered six times, including four with the Reds. He is sporting a .496 OPS in 14 games in September.

Col¨®n excited after unexpected callup

Not expecting the opportunity, Christian Colón is happy to be with the Reds for the final weeks of the 2019 season. Cincinnati purchased Col¨®n¡¯s contract from Triple-A Louisville prior to Monday¡¯s 8-2 loss to the Cubs at Wrigley Field.

¡°I was in Arkansas. I was hanging out with some friends and got a call from my agent,¡± Col¨®n said. ¡°I¡¯ve been keeping up with the team, obviously, but a complete surprise.¡±

The 30-year-old infielder hit .300 with 10 homers and an .814 OPS in 136 games for Triple-A Louisville. Last playing in the Major Leagues in 2017, Col¨®n was with the Royals from 2014-17 before he was claimed off waivers from the Marlins in May 2017. The Reds signed him as a free agent in December 2018 -- and he had a career .252 average in the bigs, with one home run and 25 RBIs in 142 games.

Col¨®n entered as a pinch-hitter during the third inning Monday and was hit by a pitch from Cole Hamels in his first and only plate appearance. He then came around to score on Curt Casali's bases-loaded walk.

Col¨®n¡¯s arrival comes at a good time for the team, as the Reds have been banged up over the past few weeks and could use an additional infielder for depth.

¡°I think with [Jos¨¦ Iglesias¡¯] sore back and Freddy Galvis¡¯ [knee], we didn¡¯t know until today,¡± Bell said. ¡°That was definitely part of it.¡±

¡°I think this is a time to show everybody what you can do,¡± Col¨®n said. ¡°I don¡¯t expect anything else, but to go out there and compete.¡±