Salazar, 25, went 6-8 with a 4.25 ERA, 1.38 WHIP and 120 strikeouts in 20 starts last season for the Indians. He also made 11 starts with the Triple A affiliate in 2014.
In 30 career starts, Salazar has a 3.89 ERA and 185 strikeouts in 162 innings.
Salazar has allowed five home runs, 14 hits, five walks with a 8.18 ERA in 11 innings pitched this spring.
He gave up seven runs, including six earned, in 3.1 innings in the Indians' 13-2 loss to the Cincinnati Reds on Thursday.
"The stuff is definitely there," Indians manager Terry Francona said. "It's not there yet consistently, whether he's locating or following a pitch up with two pitches in a row. Again, we'll keep working at it -- that's for darn sure -- but the results weren't kind of what we're looking for."
- Scooby Axson