VIDEO: After Bob hits Mike in head with serve, Bryans win double-tweener point

Down a set but up 4-2 in the second stanza of Sunday's ATP World Tour Finals title match, the Bryan brothers engaged in a spirited exchange with Ivan Dodig and Marcelo Melo. The foursome's 18-stroke rally likely proved the point of the tournament—including the singles event. Two tweeners in a row will do that. See (or simply relive) the point here:

The Bryans weren't so in sync earlier in the match when, down 4-5, 30-0 to Dodig and Melo, Bob clocked Mike in the noggin with one of his heralded southpaw serves:

Mike pretended to flail about and fall to the ground in that moment. In the end, it didn't matter. The Bryans, who crossed the 100-titles threshold earlier this season, sewed up their 2014 campaign with a convincing showing in which so many doubles contests outshone the singles matches. The Bryan twins ultimately defeated Dodig and Melo, 6-7 (5), 6-2, 10-7, and stuck around after the trophy presentation to sign autographs and pose for more than a few selfies. ("Go, go, Gadget arm!)

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Afterward, in a locker-room interview, the 36-year-olds maintained that, despite impending holidays, they're already looking forward to the 2015 season. Cue a collective shudder from the rest of the ATP doubles contenders. These Bryans, they don't stop.

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