Originally selected by Chicago in the sixth round of the 2003 Draft, Marshall has gone 1-1 with a 3.41 ERA (12 ER/31.2 IP) in seven starts for Iowa this season, limiting right-handed hitters to a .202 batting average (19-for-94). In his most recent start June 19 vs. New Orleans, Marshall allowed one run on four hits and one walk while striking out four in 8.0 innings of work.
Ward, who turns 33 on June 27, was placed on the 15-day disabled list May 18 (retroactive to May 14) with a bulging disc in his lower back, and batted .500 (5-for-10) in three rehabilitation games with Iowa, June 21-23. In 30 games for the Cubs this season, he is hitting .200 (5-for-25) with two doubles, a home run and six RBI, recording a .412 on-base percentage and a .400 slugging percentage. He is 2-for-17 (.118) with seven walks and a .375 on-base percentage as a pinch-hitter this season.
Ward's 74 career pinch-hits rank third among active players behind Mark Sweeney (169) and Marlon Anderson (80). He has compiled a .408 on-base percentage as a pinch-hitter for Chicago over the last two seasons, going 13-for-58 (.224) with 18 walks and seven RBI in that role.
The 31-year-old Johnson is hitting .271 (49-for-181) with three home runs and 31 RBI in 56 games with Chicago. He signed with the club March 25 as a free agent after beginning Spring Training with Toronto. He has made 44 starts for the Cubs, with the team going 30-14 in those contests.
Hoffpauir, 28, has made two stints with Chicago, batting .400 (14-for-35) with eight runs in 18 games, including five multi-hit affairs. With Iowa this season, the left-handed batter has hit .306 (19-for-62) with four doubles, three home runs and 15 RBI in 16 games.