Chris Flexen (Seattle Mariners), who played in the KBO until last year, is changing a question mark about himself into an exclamation point in the major leagues.

Flexen started in the away game against Oakland in the 2021 MLB held at the Oakland Coliseum on the 23rd and won his 13th win of the season with three hits and one run in seven innings.

With this, Flexen secured the team's most wins position and at the same time jumped up to tied for second in the American League's most wins division with Ryu Hyun-jin.

Flexen, who wore a Doosan uniform last year, played 21 games with an 8-4 record of 3.01 ERA. In particular, he played as the team's ace in the postseason, recording an exceptional record of 2 wins, 1 loss and 1 save ERA of 1.91.

He then began to gain interest again in the major leagues and returned to the United States before this season, signing a two-year, $4.75 million contract with Seattle.Prior to joining the KBO League, Flexen was a below-average player with only 3 wins,11 losses and an ERA of 8.07 in three seasons in the big leagues.