The Cavaliers are pushing the Bucks all the way to the wire in a highly competitive race for second spot in the Eastern Conference.
Milwaukee have a 47-29 record, with the Cleveland side sitting on 46-31.
In the Western Conference the Phoenix Suns are desperately clinging onto the sixth and final playoff spot and their 122-101 win over the Cavaliers was crucial.
Devon Booker and Kevin Durant have been viral to the Suns in the throes of regular season.
Booker dropped 40 points on Cleveland while Durant scored 32 and picked up 6 rebounds and 7 assists.
Jusuf Nurkic was huge off the boards with 10 rebounds.
The third placed Cavaliers had one of their worst games of late with only Donovan Mitchell with 24 points providing any resistance.
The Celtics look so far ahead of the weaker looking Eastern Conference that there is daylight, moonlight and pixie dust separating them from the other contenders.
