Rockets guard Russell Westbrook, in appearance on “The Tonight Show Starring Jimmy Fallon” on Tuesday, spoke of his time at home during the NBA hiatus and promoted charities he is supporting but also offered a message should the NBA return to conclude the 2019-20 season. “I’m always ready, Jimmy,” Westbrook said when Fallon asked if he would be ready for playoffs. “I’m always ready. I’m always ready.” When Fallon asked if he was in basketball shape, Westbrook said, “I would say so.”