Seattle Mariners starting pitcher Bryan Woo is set to throw off a mound Thursday for the first time since leaving the team’s Sept. 19 game at Houston with mild inflammation in his right pectoral muscle. Woo will not take part in the team’s intra-squad scrimmage, instead throwing a bullpen session. The team wants him to throw at least twice before he makes an ALDS start, pushing back his timeline to likely Game 3. Woo, 25, last threw five innings 12 days ago, leaving in the middle of warmups before starting his sixth inning of work. With Woo unlikely to start the first two games of the ALDS, the Mariners likely will turn to either Logan Gilbert, Luis Castillo and George Kirby to start their two home games to begin the postseason.