Chicago Cubs today placed outfielder Alfonso Soriano on the 15-day disabled list because of a strained right quadriceps suffered yesterday while running the bases against the New York Mets.
Soriano is expected to miss 2-4 weeks. He had an MRI exam last night and did not travel with the Cubs to Houston.
Chicago purchased the contract of infielder Eric Patterson from Triple-A Iowa to fill Soriano's roster spot.
Soriano is hitting .297 with 18 homers and 42 RBIs.
Patterson was batting .299 with 23 doubles, six triples, 14 home runs and 62 RBIs at Iowa. The left-handed hitter is the brother of Corey Patterson, who played for the Cubs from 2000 to 2005.
Chicago also put right-hander Wade Miller on unconditional release waivers and designated infielder Brian Dopirak for assignment.