The other big arm involved in the DeRosa deal, was the 6'2 200lbs 23 year old power lefty arm in John Gaub who was drafted by the Minnesota Twins in the 25th round out of high school. Yet he declined and pitched three years for the Minnesota Gophers mostly in the bullpen before being drafted by the Indians in the 21st round in the 2006 draft. Gaubís talent was much higher than his draft status but shoulder surgery at the end of his sophomore season left many teams cautious even after pitching his junior year where he was obviously not 100%.

The Indians still liked his talent despite knowing that he was still injuried. John ended up having four screws inserted into his shoulder to help stabilize his labrum, thus Gaub didnít start pitching for the Indians until the very end of the 2007 season in the Gulf Coast League. In 2008, he started the season in extended spring training working on rebuilding his lost velocity. Before his injury in college, Gaub would hit 96 mph with regularity and even approach 100 mph mark. This season, Gaub was continually throwing around 89-91 mph and reached 94 mph a few times. The longer heís removed from his injury, the more the velocity will return.

Not only does he have heat but he has a deceptive delivery that gives the illusion of even more speed on his pitches. In addition to his fastball, John added a nasty biting slider this season and it helped him throw up some gaudy numbers in Low A, in 34 G, he went 64 IP, giving up 44 H, 32 BB, 100 K, 3.38 ERA, 1.19 WHIP, .192 BAA. The slider he developed was extremely effective against lefties, of the 73 LHH he faced, he struck out 38 of them. The further the season went on, the sharper he looked as he gained velocity and control over his slider. Gaub also throws an average changeup, that is just another offering to help throw off hitters and he just scrapped his curveball which was poor. His fastball/slider combo is more than enough for him to climb through the system but he has to get a handle over his control issues to make the appropriate developments down the road. On the mound, heís extremely aggressive with good makeup, he likes to challenge hitters especially righties inside. Because of his stuff and hard nosed pitching, he's been compared to Damaso Marte. Gaub looks to start the season in High A but could easily end it in AAA, as the Cubs have a lack of lefty pen arms especially in the higher levels.