Perez has managed to go just 2-for-17 over the last four games, bringing his batting average down to .245 for the season. Drew Butera will start behind the dish while Perez gets the night off.
Koch had a no-hitter going through five innings, but allowed two Nationals baserunners without getting an out in the top of the sixth. Both came around to score in what ended up being a four-run frame, denying the 25-year-old right-hander what would have been a memorable win over Washington ace Max Scherzer in his first career start. He'll get a chance to follow up this impressive debut at home against the Padres in the season finale Sunday.
Casali has an atrocious .175/.257/.327 batting line but has shown real power this season. He has eight home runs in 81 games after mashing 10 homers in just 38 games last season for the Rays. He strikes out too much to ever hit for average, but a catcher with his pop is likely to find work for quite a while.
Aside from racking up a few stats Monday, Martin was also an active participant in a pair of bench-clearing skirmishes. More important to fantasy owners, the struggling catcher notched his first RBI and first run since Sept. 20. Although Martin is hitting just .164 this month, he's been able to stay afloat due to good plate discipline. The veteran owns a decent .313 OBP thanks in part to the 15 walks he's drawn in September.
With R.A. Dickey seemingly moved to the bullpen for good, Thole -- Dickey's personal catcher -- is no longer needed to make spot starts behind the plate. His role on the team has been reduced to its lowest point of the season, and it's almost a certainty that Thole will not regain fantasy-relevance this season.
Koch has pitched extremely well out of the Diamondbacks bullpen during his first cup of coffee in the majors, so manager Chip Hale decided it was time to see how he'd fare in a starting situation. Koch will face the NL East champion Washington Nationals, although it is worth noting that their lineup could be shorthanded if Bryce Harper (thumb) and Daniel Murphy (leg) are unable to play.
He went 1-for-2 with a double back on September 10, but he just hasn't gotten any time on the field or at the plate even with the struggles of the Tigers' primary catchers.
Sucre has 10 hits in his last four games (14 at-bats) with two doubles, a homer and five RBI. He's little more than a depth option at catcher, though, and likely won't have a chance to make the roster next season in spring training.
Bandy had been dealing with back trouble in recent days before returning to the lineup Saturday, going 1-for-4 with a double and a run scored. The Angels may just be acting cautiously by holding Bandy out Sunday, as he's still expected to see the bulk of the starts at catcher over the final week of the season.
Bandy caught the final inning of Friday's game and is now ready to return to the lineup after missing six straight starts. The 26-year-old has flashed solid contact skills and some power in 65 games with the Angels this season, and will presumably handle primary catcher duties over the final week-plus.