MIAMI — The New York Mets noticed a recent drop-off in catcher Travis d’Arnaud’s throwing, and now they know why.

D’Arnaud went on the disabled list for the fifth consecutive year Wednesday with a partial tear of the ulnar collateral ligament in his right elbow, and surgery is possible.

The roster move came after d’Arnaud underwent an MRI in New York. The severity of the injury was a surprise, but Manager Mickey Callaway said d’Arnaud’s throwing had recently been hampered.

“Just getting the ball there seemed to be an issue early in the season,” Callaway said. “There was some concern there. I hate that it ended up with this.”

A decision on surgery, which could be season-ending, or rest as the course of treatment will be made within a few days.

“The doctors obviously will have conversations with Travis, and then Travis has to make that tough decision,” Callaway said. “That’s a long road if he goes the surgery route.”

The injury was a big setback for a team off to a 9-1 start, the best in franchise history.

FRANCHISE VALUES: The New York Yankees are the most valuable franchise in baseball at an estimated value of $4 billion, according to Forbes.

The Los Angeles Dodgers are second at $3 billion, followed by the Chicago Cubs ($2.9 billion), San Francisco Giants ($2.85 billion) and Boston Red Sox ($2.8 billion).

Tampa Bay is the least valuable team, estimated to be worth $900 million.

ASTROS: First baseman Yuli Gurriel is expected to be activated from the 10-day disabled list before the start of a home series on Friday against Texas.

Gurriel is recovering from left hand surgery.

NATIONALS: Catcher Miguel Montero was designated for assignment after going 0 for 11 in four games.

PADRES: Outfielder Manuel Margot was placed on the 10-day disabled list with bruised ribs.