#2. The McKee Family (AJ & Antonio)
The only father-son duo to make the list, the McKee family have dominated the MMA world for over 20 years. While AJ McKee has stolen headlines recently, racing to a 18-0 record and becoming Bellator's pound-for-pound king, his father was an accomplished fighter in his own right years earlier.
Antonio McKee was an MMA pioneer, competing during the sports infancy and likely missing out on much of the fame he would have achieved today. In the 2000s, McKee put together a seven-year, 15-fight undefeated streak and even competed in the UFC.
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Perhaps even more impressive, after five years away from the cage, Antonio McKee made history competing at Bellator 228 in 2019 on the same card as his son. The family went 2-0 that night with both father and son securing impressive knock-out victories.
AJ McKee's win that night was his first in the Bellator Featherweight Grand Prix which concluded this July when he submitted Patricio Pitbull to become champion. The first-round submission victory sent shockwaves throughout the MMA world and cemented AJ McKee as Bellator's biggest star.
With 'The Mercenary' still improving and only 26 years of age and with Antonio developing into one of the top trainers in MMA, you can expect to hear a lot more of the McKee family name for years to come.
#1. The Shevchenko Family (Antonina & Valentina)
With Valentina defending her UFC women's flyweight championship at UFC 266 and Antonina competing the following weekend, the MMA world has seen plenty of the Shevchenko family lately.
Antonina is the older of the two sisters at 36 and fought bravely in her most recent bout against undefeated contender Casey O'Neil. While she lost on this occasion, the MMA veteran is still a constant threat to opponents and has been ranked as high as #11 in the flyweight division.
Entering the UFC, Antonina went 5-0 to start her pro MMA career, scored a knockout win on Dana White's Contender Series and now holds a record of 9-4. UFC 255 is the only event thus far to become a Shevchenko family affair when Antonina knocked out Ariane Lipski and Valentina defended her title over Jennifer Maia.
That win was Valentina's fourth consecutive title defense, a tally that reached six with her recent knockout victory over Lauren Murphy. 'The Bullet' has looked dominant at flyweight and also sits second in the UFC women's pound-for-pound rankings.
At 33, Valentina looks set to continue to dominate the division and has even teased a trilogy bout against bantamweight and featherweight champion, Amanda Nunes.