Jones (elbow) will make a third start with Double-A Altoona on Tuesday, Danny Demilio of PittsburghBaseballNow.com reports.
Jones will continue his minor-league rehab assignment, looking to build off the six innings of one-run ball that he's produced while striking out seven batters over his first two outings with Altoona. The 24-year-old is eligible to be activated from the 60-day injured list May 25, and it's possible that Tuesday will be his final start with the Double-A squad before taking his rehab to the Triple-A level.