Jeff Mathis

After a solid 2006 spring training, Mathis was expected to see substantial playing time at catcher, sharing the position with José Molina. However, once the regular season began, he struggled greatly on both defense and offense. With Mathis batting only .108 and the team compiling just a 2–9 record in games that he started, the Angels demoted him back to the minor leagues one month into the season. Mathis was replaced on the Angels roster by catcher Mike Napoli, who later became a very offensive-minded catcher that transitioned to being a first baseman and designated hitter due to his defensive shortcomings.

In 2008, Mathis batted just .194, below the Mendoza Line.

Mathis hit an 11th-inning walk-off RBI double in game three of the 2009 American League Championship Series, that defeated the New York Yankees 5–4.[5] His impressive 2009 playoff offensive statistics became important in his 2010 arbitration hearings. In spite of poor regular season stats (.211 average), he used his strong playoff offensive performance and excellent defensive skill to bolster his case for a raise to $1.3 million, beating the Angels management in arbitration.[6] The arbitration hearing was also something of a watershed in the amount of consideration paid to Mathis' defensive statistics. The LA Times highlighted the stark comparisons with competing catcher Mike Napoli: "in 657 innings with the agile Mathis behind the plate, Angels pitchers had a 3.99 earned-run average; they had a 4.86 ERA in 758 innings with Napoli catching. Mathis also caught 17 of 69 attempted base-stealers for a 24.6% success rate; Napoli, who will make $3.6 million in 2010 but is coming off two 20-homer seasons, caught 13 of 87 attempted base-stealers for a 14.9% success rate".[6] Mathis had been among the AL leaders in pitchers' earned run averages while behind the plate.[7]

In 2010, Mathis was ranked by Beyond the Box Score as one of the worst defensive catchers in baseball.[8] He also matched his career-worst batting average of .194, while posting a sub-.500 OPS in over 200 at bats.

Mathis playing for the Toronto Blue Jays in 2012

On December 3, 2011, following the acquisition of Chris Iannetta, he was traded to the Toronto Blue Jays for pitcher Brad Mills.[9]

Nine days later, Mathis signed a contract with the Blue Jays to avoid arbitration. He signed a one-year deal and was guaranteed to earn $1.5 million.[10] Mathis made his first career pitching appearance in a game against the Texas Rangers on May 25. Pitching in the 8th inning, Mathis gave up a hit and walked a batter, but ended the inning without surrendering a run. He became the sixth position player for the Blue Jays to pitch in a game, and the first since Mike McCoy on June 11, 2011.[11] He made a second pitching appearance exactly two months later, mopping up in a 16-0 loss against Oakland. In that game, Mathis gave up 3 hits and 2 runs (both earned) in 1 inning of work.

On August 14, 2012, Mathis was signed to a two-year contract extension worth $3 million. It included a 2015 club option worth $1.5 million. Mathis was hitting .215 with six home runs over 147 plate appearances at the time of extension.[12]

Mathis with the Marlins in 2015

On November 19, 2012, Mathis was traded to the Miami Marlins along with Adeiny Hechavarria, Henderson Álvarez, Yunel Escobar, Jake Marisnick, Anthony DeSclafani, and Justin Nicolino, in exchange for Mark Buehrle, Josh Johnson, José Reyes, John Buck, and Emilio Bonifacio.[13] Mathis was expected to serve as the back-up to Rob Brantly.

In his first spring training game with the Marlins on February 23, 2013, Mathis broke his collarbone on a foul tip hit by Matt Holliday. He was the only catcher with major-league experience besides Brantly, and was expected to miss 6 weeks.[14] Mathis made his season debut on May 16, going 0–4 with 2 strikeouts. On June 30, he hit a walk-off grand slam against Tyson Ross of the San Diego Padres to give Miami the win, 6–2.[3] On November 1, 2014, the Marlins exercised their $1.5 million 2015 option on Mathis.[15]

On December 18, 2015, Mathis re-signed with the Marlins on a 1-year deal worth $1.5 million.[16] He hit his third career grand slam (first since 2013) in a June 14, 2016 game against the San Diego Padres.[17]

Mathis signed a two-year, $4 million deal, with the Arizona Diamondbacks on December 5, 2016.[18] During the 2017 season, he appeared in 60 games with the Diamondbacks, batting .215 with two home runs and 11 RBIs. He hit .200 with 1 home run and 20 RBI in 2018.

On November 15, 2018, Mathis signed a two-year deal, with the Texas Rangers.[19] In 2018, Mathis hit .158/.209/.224/.433 with 2 home runs and 12 RBI over 86 games, but still helped Lance Lynn and Mike Minor to finish top 10 in AL Cy Young Award votings.[20][21] He is expected to be working in tandem with Robinson Chirinos, a more offensive-minded catcher.