Roki Sasaki can sign with Major League Baseball teams during a nine-day window starting Wednesday, an unusual free agency with ripple effects for Latin American teenagers whose unofficial agreements worth millions are on hold pending his decision.

Once Juan Soto was off the market, the Roki Sasaki sweepstakes immediately became the most enamoring story of the MLB offseason. The 23-year-old phenom will come to the MLB boasting an explosive fastball that tops 100 mph and a wipeout splitter that offsets his lightning heater.

The Mariners weren't among the reported finalists for Japanese pitching phenom Roki Sasaki, who narrowed his search down to three teams.