Joseph Thomas Borowski (born May 4, 1971) is a sports broadcaster for the Arizona Diamondbacks, as well as a former professional baseball right-handed relief pitcher.

He played in Major League Baseball for the Baltimore Orioles, Atlanta Braves, New York Yankees, Chicago Cubs, Tampa Bay Devil Rays, Florida Marlins, and Cleveland Indians.

[5] Borowski spent the 1999 season in the Milwaukee Brewers organization, going 6–2 with four saves and a 5.46 ERA in 58 games for the Triple-A Louisville RiverBats.

[5] On July 11, 2005, Borowski signed with the Tampa Bay Devil Rays,[12] who used him as a set-up man to closer Danys Báez.

[5] After the season, Borowski agreed to a multi-year contract with the Philadelphia Phillies, but the deal later fell apart after concerns over the status of his right shoulder.

[16] On December 6, 2006, Borowski signed a one-year, $4.25 million contract with the Cleveland Indians that included a club option for 2008.

During the 2007 season, Borowski got off to a slow start as closer for the Indians, posting an earned run average of 13.50 in his first seven outings.

[18] His struggles were capped off after surrendering six runs to the New York Yankees on April 19, 2007, in the ninth inning after coming into the game with a four-run lead.

[5] On November 6, 2007, the Indians exercised Borowski's $4 million club option, opting to bring him back in 2008.

[21] Following another dreadful appearance in which he gave up three earned runs in 2⁄3 inning on April 14,[22] the Indians put him on the 15-day disabled list with a strained triceps.