Red Sox Add Veteran Catcher Andrew Knizner to Bolster Organizational Depth

The Boston Red Sox have strengthened their catching depth by signing veteran backstop Andrew Knizner to a minor league contract and assigning him to Triple-A Worcester. While the move does not immediately affect the major league roster, it gives Boston another experienced option as the organization continues to assess its lineup behind the plate.

Knizner became available after parting ways with the Colorado Rockies organization earlier this month. The 31-year-old exercised an opt-out clause in his contract following a productive stretch with Triple-A Albuquerque, making him an attractive addition for clubs seeking experienced catching depth.

Boston’s decision comes at a time when production from the catching position has been inconsistent throughout the season. Although the Red Sox currently have multiple catchers on both the major league and Triple-A rosters, adding another veteran provides additional flexibility as the front office evaluates potential roster moves.

The signing also reflects the organization’s emphasis on maintaining depth over the course of a long season. Injuries, trades, and performance fluctuations often create opportunities for experienced players, and Knizner now enters Boston’s system hoping to earn another chance at the major league level.

1. Veteran Experience Adds Value to Boston’s System

Knizner brings a considerable amount of major league experience despite joining the Red Sox on a minor league deal. Over parts of seven MLB seasons, he has suited up for the St. Louis Cardinals, Texas Rangers, and San Francisco Giants while building a reputation as a dependable backup catcher. Across 323 major league games, Knizner has accumulated 975 plate appearances while recording 19 home runs and 90 runs batted in. Although his overall offensive numbers have been modest, he has demonstrated the ability to contribute in stretches when given regular playing time. His strongest offensive season came during his tenure with the Cardinals. That year, Knizner appeared in 70 games and posted improved production at the plate, hitting .241 with 10 home runs and 31 RBIs while showing flashes of the offensive upside that originally made him a highly regarded prospect. His most recent stint in the majors with the Giants proved more challenging, as he struggled to consistently produce offensively. Even so, his extensive experience working with pitching staffs and handling defensive responsibilities continues to make him a valuable organizational piece.

2. Strong Triple-A Performance Earned Another Opportunity

Although Knizner’s major league production declined last season, his performance in Triple-A during 2026 helped renew interest from organizations seeking experienced catchers. Before becoming a free agent, he enjoyed one of the strongest offensive stretches of his professional career. Playing for Triple-A Albuquerque in the Rockies organization, Knizner appeared in 33 games while producing an impressive .279 batting average along with a .371 on-base percentage and .590 slugging percentage. He also collected 10 home runs and 22 RBIs across 140 plate appearances. Those numbers become even more notable considering his consistency throughout the season. While Albuquerque plays in the offense-friendly Pacific Coast League, advanced offensive metrics still rated his production well above league average, indicating his success extended beyond favorable hitting conditions. Knizner has also made steady progress defensively. Recent evaluations have shown improvement in pitch framing, and he has continued receiving positive marks for his blocking ability. Although his career caught-stealing percentage remains slightly below league average, his overall defensive profile has become more complete over the past several seasons.

3. Catching Depth Could Support Future Roster Decisions

Boston’s catching picture remains crowded despite the addition of Knizner. At the major league level, Carlos Narvaez, Connor Wong, and Mickey Gasper are all currently on the active roster, while Jason Delay, Matt Thaiss, and Nathan Hickey are also available at Triple-A Worcester. Even with multiple options, offensive production from the position has been inconsistent this season. Narvaez has struggled to match the offensive numbers he produced during his rookie campaign, while Wong has provided steadier production when healthy. Gasper has also earned additional opportunities behind the plate as the season has progressed. The addition of Knizner comes amid continued speculation surrounding Boston’s catching corps. Reports have indicated that chief baseball officer Craig Breslow has explored potential trade possibilities involving the team’s catchers, particularly as other clubs search for help behind the plate. Although Knizner’s arrival does not necessarily signal an immediate transaction, it gives the Red Sox another experienced alternative should future roster changes occur. Whether through injury, trade, or performance-related decisions, Boston now has additional flexibility while continuing its pursuit of postseason contention later this season.