Answer
In 2013, Colón pitched for the Oakland Athletics. He joined the team as a free agent after spending the previous season with the Atlanta Braves. With the Athletics, Colón had a solid season, going 15-10 with a 3.43 ERA in 30 starts. He also struck out 184 batters in 190.1 innings pitched. Colón's performance helped the Athletics win the American League West division and advance to the playoffs.