"I think I can be ready before two weeks, but when I come back, I want to be 100 percent," Soriano said. "It's not bad. It'll take me one week, two weeks to come back. I hope it's not longer than that."
Soriano left Monday's game in the first inning with the injury and underwent an MRI to determine the severity. The Cubs recalled outfielder Tyler Colvin from Triple-A Iowa to take Soriano's spot on the roster.
Soriano grabbed his left leg a few steps from first base as he ran down the line on a groundout against Houston's Aneury Rodriguez to end the first.
Add Soriano to the ever increasing list of injured players. He joins Jeff Baker, placed on the DL on Monday with a strained groin, Reed Johnson (back), Marlon Byrd (face), Andrew Cashner (shoulder) and Matt Garza (elbow). The Cubs have made 15 roster moves in a five-day span through Tuesday.
"It's very frustrating," Soriano said. "The team needs the regular players because a lot of guys are on the DL. Things happen for a reason and I hope when we come back, everybody comes back strong."
Soriano was batting .271 and leading the Cubs with 12 home runs and 29 RBIs. He was on the disabled list in 2007 with a right quad strain, in '08 with a right calf strain and missed time in '09 because of his left knee. However, this isn't as bad.
"It's nothing crazy like in the past," Soriano said.
Carrie Muskat is a reporter for MLB.com. She writes a blog, Muskat Ramblings, and you can follow her on Twitter@CarrieMuskat. This story was not subject to the approval of Major League Baseball or its clubs.