Aaron Judge has hit off a tee for the first time since straining his left oblique on April 20.

"He's doing really well," Aaron Boone said. "He actually hit off the tee yesterday, doing some dry swings and obviously you see him throwing and running and moving a little bit outside. Everything is going well. He's not having issues with any of that."

Judge also took some fly balls in the outfield prior to the New York Yankees' game on Tuesday.

"Now he just continues to build up the slow, steady progress from a hitting standpoint, which is obviously the biggest thing with that injury," Boone said. "It's been slow and steady, but it has been steady, and that's been the good thing. He has responded really well to everything. I feel like he's at a pretty good place right now as he really starts to ramp up baseball activities."

The Colorado Rockies have placed outfielder Charlie Blackmon on the 10-day injured list with a right calf strain.

Blackmon missed Colorado's last three games because of the injury, meaning he is eligible to be activated June 4.

Red Sox second baseman Dustin Pedroia said he is "not sure" whether he will play baseball again because of his chronically injured left knee.

Pedroia discussed his injury at Fenway Park on Monday, shortly after the Red Sox transferred him to the 60-day injured list.

Flanked by manager Alex Cora and president of baseball operations Dave Dombrowski, Pedroia said he will shut down his recovery indefinitely in order to ponder his future.

The Pirates placed catcher Francisco Cervelli on the seven-day concussion list Sunday in a series of moves.

Cervelli left Saturday night's game against the Dodgers in the fourth inning after he was hit in the helmet by Cody Bellinger's bat following a swing by the outfielder.

The Astros placed outfielder George Springer on the 10-day injured list Saturday with a left hamstring strain, but could be close to getting second baseman Jose Altuve back from injury.

Houston general manager Jeff Luhnow said Springer suffered a Grade 2 sprain, but would not give a timetable for how long the outfielder would be out.

Houston manager AJ Hinch said Springer will miss more than 10 days.

Mets outfielder Michael Conforto has been activated from the 7-day concussion injured list and is in the starting lineup for Sunday's game against the Detroit Tigers.

To make room for Conforto on the roster, the Mets designated outfielder Rajai Davis for assignment. Davis had a memorable debut for the Mets on Wednesday, arriving in the third inning after being called up from Triple-A and hitting a three-run home run in his first at-bat.

Giancarlo Stanton began a rehab assignment earlier this week, but the New York Yankees have returned him to the injured list with left calf tightness.

He originally landed on the IL with a biceps strain after just three games. He then strained his shoulder, sidelining him further.

Aaron Boone claimed Stanton's removal from the rehab game was "precautionary."

Yoenis Cespedes hasn't played this season and the New York Mets may not have him for the rest of 2019.

Cespedes broke his right ankle in an accident on his ranch, the club announced on Monday.

The slugger has not played this season after undergoing surgery to remove calcification on both of his heels. Those surgeries were expected to keep him sidelined for at least half of this season.

"He had a violent fall in which he stepped in a hole and put his leg and foot in a difficult position," Brodie Van Wagenen said.

Giants right-hander Johnny Cueto threw a bullpen session Saturday, and the team was encouraged enough for manager Bruce Bochy to say the club hopes Cueto can return toward the end of this season.

Cueto, who had major elbow surgery last August, was 18-5 in 2016 and selected to the All-Star Game, but he has since gone 11-10 in the past two years combined.

Astros outfielder George Springer left Sunday's game against the Red Sox in the fifth inning with stiffness in his lower back.

Springer was replaced in right field by Tony Kemp at the start of the bottom of the fifth inning. The Astros lost to the Red Sox 4-3 at Fenway Park.

Astros manager A.J. Hinch said Springer is day-to-day but definitely will not play on Monday when the Astros open a series against the White Sox at home.