The trade that brought Marco Estrada to Toronto before the 2015 season is often seen as a major steal for the Blue Jays. He was sent directly from Milwaukee for veteran first baseman Adam Lind and was initially considered a versatile depth option to help bridge the rotation and bullpen. However, Estrada unexpectedly sparked a remarkable late-career resurgence, revolutionizing his approach with a high-leverage changeup that effectively neutralized some of the American League’s most potent offenses.
His 2015 debut tour was truly a personal showcase of excellence. Starting as a reliever, Estrada quickly transitioned to the starting rotation in May and maintained his momentum. He kept hitters off balance with a deceptive, late-fading changeup and a low-90s fastball that seemed faster due to its exceptional spin. He finished the season with a career-best 13–8 record and an impressive 3.13 ERA, leading Major League Baseball by allowing just 6.7 hits per nine innings.
When the bright lights of October arrived, Estrada elevated his game to legendary heights. With the Blue Jays facing elimination, down 2-0 in the ALDS against Texas, he took the mound and spun a brilliant, high-leverage gem to save Toronto's season. He repeated the feat in Game 5 of the ALCS, completely stymying the eventual world champion Kansas City Royals and keeping the city's World Series dreams alive.
The front office immediately focused on keeping their postseason hero, re-signing him to a multi-year contract during free agency. Estrada confirmed that his breakout summer was no fluke by delivering an outstanding 2016 season. He earned his only All-Star appearance, posted a solid 3.48 ERA, and led the American League by limiting opponents to only 6.8 hits per nine innings. That fall, he also added another memorable moment to his playoff legacy, nearly pitching a complete-game shutout in Game 1 of the ALDS against Texas, falling just two outs short.
Eventually, the intense workload and ongoing back problems affected him. During his last two seasons with Toronto, his control became inconsistent, and his performance noticeably declined, culminating in 2018 when his ERA exceeded five. He then signed with the Oakland Athletics as a free agent for the 2019 season, but injuries restricted him to only five more major-league games before he retired.
With the Blue Jays, Estrada appeared in 124 games (118 starts) and posted a 39–40 record, a 4.25 ERA, and a 1.22 WHIP. He threw 703.1 regular-season innings with 575 strikeouts.