After a five-game winning streak that brought them within a half-game of first place in the American League East, the Boston Red Sox saw their momentum put on pause when they lost at home 6-2 to the Toronto Blue Jays on Monday. But an even more important loss came in the first inning, when fifth-year catcher Connor Wong was struck on his gloved hand by the bat of Jays right fielder George Springer.

The play was ruled catcher interference, and Springer was awarded first base. But though Wong remained in the game, he was replaced in the second inning by backup catcher Carlos Narváez, who appeared in six games for the New York Yankees last season, and was acquired by the Red Sox in December in exchange for 21-year-old pitching prospect Elmer Rodriguez-Cruz.

While the Red Sox initially believed the injury was nothing more than a “hand contusion,” manager Alex Cora had a disappointing update when he spoke with reporters in a post-game press briefing.

“He has a small fracture on the pinky area, so he’s going on the IL,” Cora told reporters, as quoted by the Red Sox cable network NESN. “How long, we don’t know. … We’re gonna have to make a move.”

The move, reported later Monday evening by Sean McAdam of MassLive, was to recall former San Francisco Giants backstop Blake Sabol from Triple-A Worcester. Sabol caught 55 games for the Giants in 2023, his rookie season, but struggled offensively. He displayed decent power, belting 13 home runs in 344 plate appearances, but struck out 117 times and managed just a .695 OPS.

Sabol also played in the outfield for 43 games in 2023, and was the Giants’ DH in 10 more.

The 2019 Pittsburgh Pirates seventh-round draft pick spent most of last season in the minor leagues, appearing in only 11 games for the Giants last season. The Red Sox picked him up in January for an unspecified amount of international bonus pool cash.

More MLB: Trade Idea Gets Red Sox Big Catching Upgrade in Deal For $140 Million Infielder

Catcher is perhaps the one position where the Red Sox have the least depth. Narváez now moves into the starting role, and by calling up Sabol the Red Sox have no catchers on their 40-man roster who are not currently in the majors.

In fact, the Red Sox were already hurting at the catcher’s spot. Wong is generally considered a below-average defender as his negative-11 career defensive runs saved number, per Fangraphs, would indicate.

At the plate, after posting a solid if unspectacular .758 OPS with 13 home runs in 2024, Wong is off to a dismal start this season, with just two hits and three walks in 26 trips to the plate.

What do the Red Sox do now? Unless they want to ride with Narváez and Sabol, who prior to Tuesday’s game have 63 major league catching appearances between the two of them — or unless they believe Wong will recover quicker than now appears — the team will be forced to make another personnel move.

More MLB: Red Sox Shockingly Suggested To Sign $533 Million Superstar Next Offseason

One recent trade proposal, by Conor Liguori of Athlon Sports, sees the Red Sox sending often-injured shortstop Trevor Story to the Atlanta Braves for All-Star catcher Sean Murphy.

Another recent trade pitch had Boston sending righty starter Tanner Houck, an All-Star last season, to the Detroit Tigers for power-hitting backup catcher Dillon Dingler, though the 2020 second-round draft pick has only 31 big league games behind the plate himself.

More MLB: Red Sox Trade Pitch Sends All-Star Right-Hander to Tigers For Catching Help