Nationals catcher and opening day cleanup hitter Wilson Ramos will likely undergo hamate bone surgery on his left hand Wednesday morning, according to multiple people familiar with situation. The procedure would sideline the Nationals’ bedrock catcher for more than a month and affect him once he returns.

After he received a MRI on Tuesday, Ramos will visit specialist Kenneth Means in Baltimore for a final opinion. If Means determiness Ramos needs surgery, as expected, Ramos could miss up to eight weeks and experience diminished power at the plate once he returns.

Hamate bone injuries are common in baseball. Recovery tends to take four to eight weeks. Many players require longer to recapture their power once they return.

Ramos exited Monday’s season opener with a left hand injury. Ramos also recently complained of wrist discomfort. Before one of the Nationals’ final spring training games, Ramos wore a large ice wrap around his left hand. At that time, Ramos dismissed soreness as nothing to worry about.

The Nationals have yet to announce the results of Ramos’s examination. General Manager Mike Rizzo didn’t respond to requests for comment.

Ramos is believed to have suffered the injury on a foul tip during Monday’s season opener, Manager Matt Williams said after the game. The right-handed batter felt more pain while he was hitting. During his final at-bat of the game in the seventh inning, Ramos swung only once, watched fastballs go by and struck out looking. He was replaced in the bottom of the inning by backup Jose Lobaton, who the Nationals acquired in a mid-February trade to upgrade its catching depth behind Ramos.

During Mondya’s game, a person close to Ramos said the catcher believed he had a fractured bone in his left hand. Before he left the game, Ramos even told Lobaton to start warming up because he was going to come out because of the pain.