Michael Paul Koplove (/ˈkɒpləv/; born August 30, 1976) is an American professional baseball scout and former player.

[2][3][4] He is the older brother of Joey Criniti and minor league and Team Israel pitcher Kenny Koplove, who is 17 years younger.

[11][12] During his junior season at the University of Delaware, he helped lead the team to the 1998 America East Championship and the NCAA Atlantic II Regional.

In 2002, Koplove was 6–1 with a 3.36 ERA in 55 games, giving up only 47 hits in 61.2 innings (holding batters to a .213 batting average and a .276 slugging percentage; with men on base he was even stingier – .207/.228).

[18] In 2004, Koplove set career highs in appearances (76), innings pitched (86.2), strikeouts (55), and saves (2), but his ERA was at 4.05.

In 6 seasons with the Diamondbacks (2001–06), he made 217 relief appearances (3rd in team history as of May 2007), compiling a 15–7 record with 2 saves and a 3.76 ERA.

[16] In January 2007, the Florida Marlins extended a spring training invitation to Koplove, who signed a minor league contract with the ballclub, but in March 2007 they released him.

He was 2–0 with 3 saves and a 1.00 ERA in 17 relief appearances (18 innings, 15 hits, 2 earned runs, 8 walks, 14 strikeouts).

Koplove played for the 2008 US Olympic team, earning a bronze medal with the club in Beijing, China.

Koplove was signed by the Philadelphia Phillies to a minor league contract after the 2008 season, and was invited to spring training as a non-roster invitee.

His contract called for him to be paid $16,000 per month in the minors, as opposed to $550,000 if he made it to the big league team.

On August 4, 2009, the Pirates traded Koplove to the Seattle Mariners for minor league shortstop Deybis Benitez.