Rafael Jose Dolis
- Bats Right, Throws Right
- Height 6' 3", Weight 180 lb.
Dolis was signed by scouts Jose Serra and Marino Encarnacion for the Cubs in 2004 at age 16. He was originally a shortstop, but was converted to pitching before he came stateside. He began his U.S. career in 2006 pitching for the AZL Cubs, going 0-2 with an 8.28 ERA in 13 games (three starts) for them. In 25 innings of work, he struck out 33 batters but allowed 30 hits and 16 walks. He pitched for the Peoria Chiefs in 2007, going 3-1 with a 1.80 ERA in six starts, but went on the disabled list with tendonitis in early May and never came off the DL. Two months later, he had Tommy John surgery.
After not pitching in 2008 while recuperating from surgery, Dolis pitched for the Daytona Cubs in 2009, going 3-9 with a 3.79 ERA and .221 opponent average in 27 games (25 starts). He began 2010 back with Daytona and went 9-9 with a 3.42 ERA in 26 games that year between the team and the AA Tennessee Smokies. Moved to the bullpen the next year, he went 8-5 with a 3.22 ERA and 17 saves for the Smokies and earned a late season call-up with Chicago.