Patterson will wear uniform No. 3 and looks to make his major league debut tonight in Houston when the Cubs face the Astros at 7:05 p.m. CT.
Patterson, 24, is hitting .299 (135-for-451) with 23 doubles, six triples, 14 home runs and 62 RBI in 111 games with Iowa this season. The left-handed hitter was named to the 2007 Pacific Coast League All-Star squad and has made appearances at second base, left field and right field this season. He batted .291 (37-for-127) in July and has 16 stolen bases this year.
Originally drafted by the Cubs in the eighth round of the 2004 Draft, Patterson was named the sixth-best Cubs minor league prospect by Baseball America heading into the 2007 season. His brother, Corey, played with the Cubs from 2000-2005. The Pattersons would become the 10th set of brothers to play for the Cubs.
Soriano, 31, is hitting .297 (132-for-444) with 18 home runs and 42 RBI in 104 games for Chicago after signing an eight-year deal with the club on November 20, 2006. He earned National League Player of the Month honors for June, batting .336 (41-for-122) with 11 home runs and 18 RBI.
Miller, 30, was 0-1 with a 10.54 ERA (16 ER/13.2 IP) in three starts for Chicago this season before he landed on the 15-day disabled list with middle back spasms April 23. Signed by the Cubs as a minor league free agent in January of 2006, Miller was transferred to the 60-day disabled list June 26. He went 0-2 with a 4.57 ERA (11 ER/21.2 IP) in five September starts for the Cubs last season.
Dopirak, 23, was selected by Chicago in the second round of the 2002 Draft and is hitting .259 (86-for-332) with 16 home runs and 54 RBI between Single-A Daytona and Double-A Tennessee this season. The right-handed hitter was added to the club’s 40-man roster in November of 2005.