NEW YORK – A year ago, Jonah Heim started in the All-Star Game and won a Gold Glove.

Since Sunday, he can hardly be called the Rangers’ starting catcher anymore.

Both GM Chris Young and manager Bruce Bochy confirmed that the club plans to split playing time more evenly between struggling Home and recently signed Carson Kelly. Kelly, who started Sunday against the Yankees, has started five of the 10 games since being signed from Detroit.

“I think we have two good catchers in the major leagues, and playing time will depend on who performs best,” Young said. “I expect it will be more like 50-50. We’ll just do our best to win games, and whoever plays well will be behind the plate. And that’s how it should be at every position. If the guys perform, they’ll be there.”

Bochy said, “When you look at the workload he had last year, it looks like Jonah has shown some effects of that. I’m just being honest. After the year he had last year, he hasn’t accomplished the same. Carson can help carry that.”

Heim, who didn’t get a hit in the first game of Saturday’s doubleheader, has the second-lowest Weighted Runs Created+ number (72) of the 154 players who have had at least 350 batting appearances this season, according to Fangraphs, which uses the formula to evaluate a player’s overall impact on a team’s ability to score runs. In a simpler formula, Heim’s .618 OPS ranks 152nd among those 154 players. He’s been in a deep slump since the All-Star break, hitting just .175/.203/.281/.484 since July 18.

Heim, who turned 29 in June, caught 993 innings last year and missed two weeks from July 27 to August 12 with a strained wrist tendon. He then started every postseason game behind the plate. This year, Heim started 84 of the Rangers’ 118 games and caught 744 innings, putting him at an even higher workload than last year. Entering Sunday, he was on pace to play about 1,050 innings in the regular season.

A year ago, Heim had an OPS of .755, but he also saw a sharp decline in the second half of the year, partly due to workload and injuries, hitting just .217/.283/.374/.656.

Kelly hasn’t exactly been hitting since joining the Rangers. He entered his third day since joining the Rangers with 13 hits, two RBIs, and a slash average of .231/.286/.308/.594.

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