ARLINGTON -- A couple of impactful left-handed hitters will be out of the Marlins' lineup for possibly a couple of weeks. As expected, Miami placed first baseman Justin Bour (right oblique strain) and shortstop JT Riddle (left shoulder tendinitis) on the 10-day disabled list Tuesday.In corresponding moves, infielder Mike Aviles
ARLINGTON -- A couple of impactful left-handed hitters will be out of the Marlins' lineup for possibly a couple of weeks. As expected, Miami placed first baseman Justin Bour (right oblique strain) and shortstop JT Riddle (left shoulder tendinitis) on the 10-day disabled list Tuesday.
In corresponding moves, infielder Mike Aviles had his contract selected from Triple-A New Orleans and catcher/first baseman Tomas Telis was recalled from New Orleans.
The concern is Bour could miss about a month.
"Usually these really aren't 10-day things for me," Marlins manager Don Mattingly said. "The average is about 28 days or something like that for a rib cage. I think it would be more along those lines than 10 days."
Bour, in the midst of a breakout season, has a slash line of .289/.366/.548 with 21 home runs and 63 RBIs. He experienced the oblique issue during his one at-bat on Monday night in Miami's 4-0 win at Texas.
Bour was used as the designated hitter on Monday, with Tyler Moore getting the nod at first base. Moore is expected to get most of the playing time with Bour out at least 10 days.
Ichiro Suzuki replaced Bour as the DH on Monday.
Telis, a switch-hitting catcher, also can play some first base. Miami now has three catchers on the roster, which creates the possibility of J.T. Realmuto seeing at least some time at first base.
"We've thought about it some," Mattingly said. "It's probably a possibility also. Then you're making a choice between Tyler and A.J. [Ellis], so it's two right-handed bats, so it's not really any different. So then you think about in a sense, you have to consider Tyler more established as a first baseman, so you're probably going to get better defense with Tyler."
Riddle, Miami's regular shortstop after Adeiny Hechavarria was traded to the Rays in late June, has a slash line of .250/.282/.355 with 13 doubles, one triple, three home runs and 31 RBIs. Riddle's DL stint is retroactive to Saturday.
Riddle has been dealing with a left shoulder issue for a couple of months, and it's given him trouble particularly when diving. In recent days, it's also bothered him at the plate, so he hasn't started since July 18.
"He will probably be getting an MRI so we're going to find out what's happening," Mattingly said. "This one was different from the other ones. No true bounce-back, just didn't get better. We'll try to get this one diagnosed and see what's truly causing that."
Miguel Rojas is expected to pick up the slack at shortstop, but he also is dealing with a sore left shoulder. Late Monday night, there was some concern that he too could land on the DL.
Aviles, 36, is joining the Marlins for the second time this season. He played in three big league games in May, but has been at New Orleans since, appearing in 55 games and batting .292 with 24 RBIs.
Aviles is a natural shortstop who has also played around the diamond in the Minors, and he has even seen some time in left field.
Joe Frisaro has covered the Marlins for MLB.com since 2002. Follow him on Twitter @JoeFrisaro and listen to his podcast.