NEW YORK — An unfamiliar, deafening silence befell one of the NBA’s most rowdy arenas, and for good reason — the newly crowned King of New York went down. On a drive to the rim, Jalen Brunson turned his right ankle while guarded by Grizzlies forward G.G. Jackson at the 5:31 mark of the fourth quarter of the Knicks’ 123-113 victory over the Memphis Grizzlies on Tuesday. Brunson rolled back and forth on the court for several moments then tightened his sneaker and limped to to the sidelines, where a team trainer tended to his injury. He did not go to the locker room but did not return to the game…