ST. PETERSBURG, Fla. — New York Yankees ace Masahiro Tanaka is scheduled to throw 25 pitches Saturday in his first bullpen session since going on the disabled list with a partial tear in his right elbow.

Yankees Manager Joe Girardi announced the session before Friday night’s game at Tampa Bay.

Tanaka is 12-4 with a 2.51 ERA in 18 starts. This is the Japanese right-hander’s first season in the major leagues.

The Yankees put Tanaka on the disabled list on July 9 and hope he can return next month. Tanaka says he has “no pain” in his comeback work and Girardi says “everything has been positive” so far.

Tanaka threw on level ground for 12 minutes Friday. He also took grounders for 4 minutes and made pickoff throws to first base.

INDIANS: Center fielder Michael Bourn came off the 15-day disabled list.

Bourn went on the DL on July 6 because of a nagging hamstring injury.

He is batting .267 with seven triples, three home runs, 21 RBI and 37 runs in his second season with Cleveland.

The speedy Bourn took the roster spot vacated Thursday when reliever John Axford was awarded to the Pittsburgh Pirates on waivers.

BLUE JAYS: Slugger Edwin Encarnacion came off the 15-day DL after missing more than a month because of a strained right quadriceps muscle.

The first baseman and designated hitter just completed a rehab stint with Triple-A Buffalo and hit a grand slam in his first game.

Encarnacion is a two-time All-Star and is hitting .277 with 26 home runs and 70 RBI this season.

DODGERS: Left-handed pitcher Hyun-Jin Ryu went on the 15-day DL with a right hip strain and will be replaced in the rotation by newly acquired right-hander Kevin Correia.

Ryu complained of right hip and buttock pain after leaving Wednesday’s 3-2 loss at Atlanta. He is 13-6 with a 3.28 ERA in 23 starts.

PIRATES: Right-hander Stolmy Pimentel went on the 15-day DL because of a sprained right ankle, and the team activated right-handed reliever Axford after claiming him off waivers Thursday from Cleveland.

The 31-year-old Axford was 2-3 with 10 saves and a 3.92 ERA in 49 games.

The 24-year-old Pimentel is 2-1 with a 5.40 ERA in 19 relief appearances this season.

TIGERS: The earliest that right-hander Justin Verlander will pitch is next weekend in Minnesota. It appears that if he can’t pitch there, the Tigers will have little choice but to put him on the DL for the first time in his career.

On Friday, Manager Brad Ausmus told the Detroit Free Press that Verlander will not pick up a ball until at least Tuesday in Tampa Bay. The Tigers are off Monday.

RANGERS: Texas purchased right-hander Jon Edwards’ contract from Triple-A Round Rock and sent Robbie Ross back to the minor leagues.

Texas announced the move Friday, a day after Ross (2-5) had been recalled from Round Rock and gave up six runs in 41/3 innings in a loss to Tampa Bay.

A converted outfielder, Edwards was 2-3 with a 4.41 ERA and 62 strikeouts in 34 relief appearances combined for Double-A Frisco and Round Rock.

Edwards was originally drafted by St. Louis as an outfielder out of nearby Keller High School in 2006. He spent five seasons in the Cardinals’ organization, and is looking to make his major league debut.