Enes Kanter showed up for the Knicks game with the Hawks on Sunday on crutches. So naturally, he started. “If you’re going to make the playoffs, you’re going to make some sacrifices,” said Kanter, who was feeling the effects of getting kneed in the hip Saturday in Chicago — an injury that left him on crutches for two days. “I was in pain but [the doctors] just literally said, ‘Hey, if you want to play, we’re not going to say don’t play.’ “They just say, ‘OK, it’s your decision.’ ” So Kanter, who missed three late-November games with back spasms, played — 18 minutes, scoring eight points. “I don’t know how I’m going to feel in the morning — but we got the win, I’m good,” said Kanter, who impressed his teammates. “This guy came in crutches today. I’ve never seen anything like that,” Kristaps Porzingis said. “He was able to play, starting the game. That guy is unbelievable. He’s a warrior.” “He’s the first guy I’ve ever seen come to a game on crutches and still start the game and he’s about to leave on crutches,” Jarrett Jack said. “I’ve never seen that before in my 13 years in the league.” “I gave him a ride home last night at about 3 a.m., when I got in, and pulling the crutches out of my car and helping him to his room, there’s no way this guy’s playing, but he’s a warrior,” Doug McDermott said.