Grayson Allen reacts after making a three-point play in the first half against Notre Dame at the ACC tournament. (Abbie Parr/Getty Images)

If there were any questions about how Duke senior Grayson Allen and freshman Marvin Bagley would coexist on the offensive end entering March, those were put to rest, at least temporarily, in the first half of Thursday night’s ACC tournament quarterfinals against Notre Dame.

Allen hit his first five shots, all three-pointers, including a barrage of 25-footers, en route to 17 points, giving the No. 2 seed Blue Devils a 41-37 halftime lead. Here’s all five of those triples:

Bagley, the highly touted freshman who just returned from a four-game layoff because of a knee sprain, resumed his role as the Blue Devils’ go-to threat by hitting his first four shots. He finished the first half with 10 points and eight rebounds. Both Allen and Bagley did cool off down the stretch; Allen’s last three-pointer came with 10:09 in the first half, while Bagley missed his last seven shots before halftime as Notre Dame (17 field goals on 15 assists) rallied.

Duke will need more production from both Allen and Bagley to fend off the Irish down the stretch, but their hot start bodes well for the Blue Devils. That is especially true for Allen, who had his best stretch of the season while Bagley was out during February, averaging 24 points. He had cooled off in his final three games of the regular season, though, going just 6 for 28 from three-point range (21 percent) in that span.

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