The Cubs will be without two important players as they enter the stretch run toward the postseason.
Reliever Jason Motte and outfielder Jorge Soler both landed on the disabled list Monday morning.
Motte is dealing with a right shoulder strain and will not throw for seven-to-10 days. The Cubs hope he can be back in three or four weeks.
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Soler has a left oblique strain. He will be out approximately a month, but Cubs have already seen how tricky oblique injuries are this season as Opening Day second baseman Tommy La Stella spent two different stints on the DL with an oblique strain.
"Just one of those things that happens," manager Joe Maddon said. "Everyone faces the different dilemmas this time of year. You just gotta play through them.
"It's called depth. You have to have depth. The player that is 'depth' when it all starts out doesn't like being 'depth,' but he is and all of a sudden, he gets his opportunity and then good things can happen."
La Stella - who was the Cubs' Opening Day second baseman - is getting his opportunity right now as he was recalled to take Soler's spot on the roster. He was in the lineup at second base Monday with Starlin Castro returning to shortstop while Addison Russell deals with a minor groin injury and attends to his fiancée, who was giving birth to the couple's child Monday.
It's possible Russell will be available off the bench Monday or Tuesday.
"I've been looking to give him a break anyway," Maddon said. "Maybe this little sign indicates 'back off.'
"Let's just be very careful. He's a very important part of what we're doing right now. So this little rest might be very beneficial to him and to us."
The Cubs don't know what play Soler hurt himself on and the injury comes at a time when the 23-year-old rookie was hitting .296/.378/.394 (.772 OPS) over his last 20 games with 14 RBI and nine walks.
With Soler out, it does open up options for Maddon, who said Chris Coghlan would go back to the outfield on a regular basis against right-handed pitchers while La Stella and Castro can work in at second base. The Cubs also have Javier Baez waiting in the wings at Triple-A Iowa as an option for the infield.
The Cubs called up lefty Zac Rosscup to take Motte's spot in the bullpen.
Motte said he felt his shoulder flare up during his appearance Sunday, experiencing some "bumpiness" before finishing the inning and getting an MRI Sunday night.
Motte has gone through Tommy John recovery before, so he put things in perspective with what the Cubs hope is a minor shoulder strain.
"It is what it is," he said. "Stuff like this is part of the game. Things like this happen. All you can do is take your time, rest it when you need to rest it and do what you need to do to get back out there and get ready to go.
"Hopefully it will only be a couple weeks and I'll be back in the first couple weeks of September and be ready to go. There's still a lot of season left after that."
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This is a tough blow for the Cubs, who hold the second National League wild card spot, six games up on the San Francisco Giants entering play Monday.
The injury bug strikes the Cubs at a rough time as they embark on a crucial stretch beginning with a showdown with those Giants on the West Coast Tuesday.
This continues a week in which the Cubs offense - which responded well to limited time at the field during Maddon's "American Legion Week" - has to face Corey Kluber, Madison Bumgarner and Clayton Kershaw.
"I guess we move from American Legion Week to Cy Young Week," Maddon joked.
The Cubs also signed Quintin Berry as depth, assigning the 30-year-old outfielder to Triple-A Iowa.