Rangers third baseman Adrian Beltre will be out at least two weeks after he left Sunday's game with a sprained thumb.

Beltre, who had two hits and two RBIs against the Red Sox, suffered the injury sliding into second base in the fifth inning.

Josh Hamilton homered in his first two at-bats, his first homers since he belatedly began his major league season this week back with Texas, helping the Rangers beat the Boston Red Sox 7-4 on Friday night.

Hamilton pulled both homers into the seats in right field off knuckleballer Steven Wright.

After going 0-for-2 against the Washington Nationals on Wednesday, Jon Lester is now 0-for-59 at the plate during his Major League career.

Lester, who came to the National League this past offseason when he signed with the Chicago Cubs, is 0-for-23 with 15 strikeouts this season. He had been 0-for-36 with the Boston Red Sox and a half-season with the Oakland Athletics.

The left-hander has the most hitless at-bats of any player in history and the most at the start of a career, surpassing the 0-for-57 start for former San Diego Padres pitcher Joey Hamilton.

Bob Buhl went 0-for-70 over the course of an entire season for the Atlanta Braves and Cubs in 1962.

The Boston Red Sox have promoted top pitching prospect Eduardo Rodriguez.

Rodriguez may only make a spot start, but the 22-year-old will make his Major League debut.

The Red Sox acquired the left-hander from the Baltimore Orioles in exchange for Andrew Miller last year.

Rodriguez was at Triple-A Pawtucket.

The Red Sox have recalled Rusney Castillo, who's batting eighth and playing right field Friday against the Rangers.

To make room for Castillo on the 25-man roster, the Red Sox sent outfielder Jackie Bradley Jr. down to Triple-A Pawtucket.

Yoan Moncada made his professional debut for the Boston Red Sox on Monday, playing for the Greenville Drive of the Class A South Atlantic League.

Moncada grounded out twice, reached on an error, walked and scored twice. The 19-year-old Cuban, who batted sixth and played second base, also committed an error, whiffing on a ground ball.

"I enjoy it. I love it. I think it's part of the job. I've always enjoyed it," Moncada said. "I love playing in front of a lot of people, a lot of fans. That was one of the things about Fort Myers that was driving me crazy.

"I became a little desperate [to start playing with a full-season affiliate], but I understand it's part of the process, and the important thing is I feel I got better. Now I'm here, and I feel I'm ready for this next challenge."

The Boston Red Sox announced on Monday afternoon that Allen Craig has cleared waivers and been outrighted.

Craig is no longer on Boston's 40-man roster. Had a team claimed him on waivers, they would have had to pay Craig the $25.2 million remaining on his contract. He is signed through the 2017 season.

Bobby Valentine will return to Fenway Park on Wednesday for the first time since he was dismissed as manager of the Boston Red Sox following the 2012 season.

Valentine will serve as an ESPN analyst for the network's airing of a Texas Rangers-Red Sox game.

The 65-year-old is currently the athletic director at Sacred Heart University in Fairfield, Conn.

"I'm very excited about it," he said of a return. "It will be good to see the fans. The fans were always very good to me there."

A lot has been made of the pitching struggles of the Boston Red Sox, but they haven't hit well in the month of May.

They are hitting .206 as a team this month, the worst average in the Major Leagues.

Boston has hit 12 home runs in May, just two more than Bryce Harper. They've scored an average of 2.2 runs per game and have struggled mightily with runners in scoring position.

At .201, they rank at the bottom of the AL with RISP, and only Cincinnati has a lower average in the NL.

Yoan Moncada, the 19-year-old Cuban who represents a $63M investment by the Red Sox, will make his minor league debut Monday night for the Class A Greenville Drive of the South Atlantic League.

"He did as well as expected with his transition on and off the field - a hard worker and eager to learn,'' Red Sox director of player development Ben Crockett confirmed Sunday.