Washington Nationals outfielder Bryce Harper reportedly is going to be sidelined at least until July because of surgery on his left thumb. ESPN.com says the two-time All-Star will have the operation today. Washington spokesman John Dever declined to comment. The team was off Monday, and plays tonight at Houston. The Nationals put Harper on the 15-day disabled list Sunday, saying he had a sprained left thumb. Harper was hurt Friday night on a headfirst slide into third base on a triple against San Diego.

RETURN — Robinson Cano knows it will be awkward from the moment he walks into Yankee Stadium and has to figure out the route to the visitors’ clubhouse for the first time in his career. And that’s before he takes the field in the Bronx wearing something other than pinstripes. After signing his $240 million, 10-year contract with Seattle in the offseason, Cano will return to New York for the first time as a member of the Mariners tonight when they open a three-game series against the Yankees.

REPLAY DISPUTE — The Cincinnati Reds are asking for more information about the replay dispute that led to Bryan Price’s first ejection as manager. Price was ejected during the first inning of Cincinnati’s 1-0 loss in 10 innings at Atlanta on Sunday. Price asked for a replay after B.J. Upton was called safe at first base on Johnny Cueto’s pickoff throw. The replay was deemed inconclusive and the call stood. Price came out to discuss it further and was ejected immediately.

AROUND THE BASES — The Arizona Diamondbacks have acquired right-hander Lucas Harrell from the Houston Astros for a player to be named. … Milwaukee outfielder Ryan Braun was held out of the Brewers’ starting lineup for a second straight game with a strained intercostal muscle. … The St. Louis Cardinals have demoted struggling rookie Kolten Wong to the minors.