TOKYO - Nippon Professional Baseball's oldest active player, 46-year-old Yakult Swallows pitcher Masanori Ishikawa, said Wednesday he will retire at the end of this season.

The left-hander has spent his entire professional career with the Swallows since debuting in 2002 and has amassed 188 career wins, setting a Japanese professional baseball record in April last year for winning a game in 24 consecutive seasons.

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