Jonathan Albaladejo Santana (/ˌælbələˈdeɪhoʊ/ AL-bə-lə-DAY-hoh; born October 30, 1982) is a Puerto Rican professional baseball coach and former pitcher who is currently the Manager for the Trois-Rivières Aigles of the Frontier League.

Albaladejo was selected by the San Francisco Giants in the 34th round (1,021st overall) of the 2000 Major League Baseball Draft, but did not sign.

In the top of the third inning, in a game against the Florida Marlins, Tim Redding was injured by a batted ball and needed to be replaced.

Albaladejo entered the game with two men on and one out, and allowed a ground ball (where an inherited runner scored) and a pop up.

[10] After posting an ERA of 6.00 in 18 appearances through May 22, he was optioned to Triple-A Scranton/Wilkes-Barre to make room on the roster for pitcher Chien-Ming Wang.

[11] In 17 innings at Triple-A, he compiled a 1.59 ERA and 0.65 WHIP, earning a promotion back to the majors when Wang was placed on the disabled list on July 5, 2009.

[21][22] He was called up by the Yankees when the rosters expanded at the start of September and pitched 11+1⁄3 innings for the team during the 2010 season, recording a 3.97 ERA.

[25] In 49 games with the club's AAA affiliate in Reno, Albaladejo recorded 25 saves and struck out 60 in 56+2⁄3 innings of work.

[27] He spent the entirety of the 2013 season with their AAA club, the New Orleans Zephyrs, recording a 3.80 ERA and 72 strikeouts in 73+1⁄3 innings.

He was named an All-Star and won Pitcher of the Year during the 2016 season after setting the record for most wins by a Bluefish player (15) and most strikeouts in the league (164).

[36] He retired as an active player following the 2019 season and was later hired as bullpen coach for the Toros de Tijuana of the Mexican League.