Jaylen Brown says Boston Celtics have to "leave it all out on the floor" against Milwaukee Bucks after losing the series opener on Sunday.
Boston can now be backed at 6/5 to win the series and Milwaukee are 5/7.
The Celtics breezed through their first-round assignment as they beat Brooklyn Nets 4-0, but were handed a first defeat of the play-offs on Sunday as they went down 101-89 at home to the defending champions.
Brown, who has been carrying a hamstring injury, struggled to make an impact as he was limited to just 12 points on 4-for-13 shooting, while team-mate Jayson Tatum had 21 points.
Milwaukee's Jrue Holiday led the scoring with 25 points and Giannis Antetokounmpo recorded a triple-double with 24 points, 13 rebounds and 12 assists.
Brown admitted Boston were caught off guard by the Bucks' intensity and he is convinced his team will be better when the pair meet for Game 2 at TD Garden on Tuesday.
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"Give credit to Milwaukee," said Brown, via abc News. "They did a good job and had a good plan, but we missed a lot of open shots. They hit us in the mouth, so we gotta be ready for the next one."
He added: "They're the defending champs and we gotta come out and play basketball. We have to be ready to go no matter what the injury is, or whatever it is that we're dealing with."
"You gotta have everybody connected and mentally locked in and be ready to leave it all out on the floor."
Boston and Milwaukee tied their regular season series 2-2, with both teams winning both of their home games, and the Celtics know they now have to win at least once in Milwaukee if they are to reach the Eastern Conference finals.
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