Watch Boston Celtics vs New York Knicks - December 21st, 2017 A+ A- Print Email Watch Boston Celtics vs New York Knicks 21st December 2017 Full Game Replay Online Free 720p HD. CLICK THE PARTS BELOW TO WATCH WATCH PART 1 WATCH PART 2 WATCH PART 3 WATCH PART 4 Labels: boston celtics, NBA, NBA 2017 Season, NBA Regular Season, new york knicks