John McEnroe and younger brother Patrick McEnroe have experienced sibling rivalry and revelry together.
The pair faced off in the 1991 Chicago singles final and partnered to win the 1992 Paris Masters doubles title.
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Hall of Famer John McEnroe was the more successful player, former French Open doubles champion Patrick McEnroe was the more successful Davis Cup captain, leading the United States to the 2007 Davis Cup title.
The brothers share the ESPN broadcast booth, but which McEnroe is really king of the hill?
You be the judge.
Patrick McEnroe didn't exactly evoke memories of New York Mets pitching legends Tom Seaver and Doc Gooden when he threw out the ceremonial first pitch for the National League champion Mets at Citi Field.
Patrick's toss prompted Hall of Famer and New York City resident Billie Jean King offer up her brother, Randy, who pitched for the San Francisco Giants, as a potential pitching coach or even Mr. Met himself.
Compare Patrick's toss to John McEnroe's first pitch prior to the 2015 US Open.
The lifelong Mets fan seems to be channeling beloved reliever Tug McGraw's screwball with this first pitch.
So which McEnroe could anchor the Mets' pitching rotation?
We'll go with Kim Clijsters. Watch the former US Open champion, chewing gum like a big leaguer and clad in a classic Mets jersey, throw a strike prior to a 2010 Mets game.
In case you missed the ATP's McEnroe vs. McEnroe clash, here's a reminder.
Photo credit: Wimbledon/AELTC