As Week 4 of the 2025 fantasy baseball season approaches, several catchers are gaining traction on the waiver wire. Streamers and free-agent adds are plentiful, making it crucial for managers to target the right players. Sean Murphy has been a standout, hitting four home runs in his first nine games, rewarding those who picked him up. Francisco Alvarez of the New York Mets, recovered from a fractured hand, holds significant upside and could finish as a top-12 catcher if he returns to form. Meanwhile, Gabriel Moreno from the Arizona Diamondbacks is struggling but has potential for a breakout.

In deeper leagues, Carson Kelly of the Chicago Cubs has been hot, boasting an impressive .419 batting average and a staggering 26.7% walk rate. Edgar Quero of the Chicago White Sox, now called up, could be a hidden gem, while Drake Baldwin from the Atlanta Braves is showing promising metrics despite limited playtime. This week offers various opportunities for savvy fantasy managers to bolster their rosters.