One thing Sean Miller monitors daily is the mental health of those who sit on Arizona’s bench. He has been at it so long that he knows when a player “checks out.” That’s why he found it so rewarding when senior Matt Korcheck came off the bench at Stanford to score four points and grab two rebounds Thursday night. Korcheck checked in, not out. “He’s one of our hardest workers, one of the most consistent people and good teammates we have,” said Miller. “You have to admire how consistent he is every day.” In addition to waiting for his shot, Korcheck, who played at Sabino High and Cochise College, is two classes away from earning his degree. “One of the big reasons Matt came here is to be part of a winning program, and the Stanford game was a defining moment for him,” said Miller. “His family and his previous coaches prepared him for life after basketball. He doesn’t expect anything to be given to him.”