SAN FRANCISCO—Scrap, fight, and claw are three words that will keep young players in the NBA on the court and earn them larger roles. At 39 years old, Warriors center Al Horford still ascribes to them too.“To have a guy like Al, we know he’s 39 years old, but he’s still playing like he’s 20,” Gui Santos said Monday night. “He’s great, he’s great, I love him.”The shorthanded Warriors pulled off a wild 114-113 comeback win against the even more shorthanded Memphis Grizzlies at Chase Center on Monday night, and it was Horford showing the young guys the way. The Grizzlies on the final possession had a 21-year-old, 22-year-old, two 23-year-olds and a 25-year-old on the floor. The Warriors used a 22-year-old, two 23-year-olds, a 27-year-old, and the 39-year-old Horford. Somehow, the oldest of the bunch was the one outworking his competition to give the Warriors every extra chance at a win. Horford, with two hands, forcefully secured the ball tipped to him from De’Anthony Melton winning his jump ball, grabbed his missed layup, went to tip it in, and grabbed that as well. Then, he held on to the ball with two...