[PAR] [TLE] Alistair Overeem [SEP] Alistair Cees Overeem (] , ; born 17 May 1980) is a Dutch mixed martial artist and former kickboxer.  He is a former Strikeforce Heavyweight Champion, DREAM Interim Heavyweight Champion, K-1 World Grand Prix Champion, and is one of only two fighters to hold world titles in both MMA and K-1 kickboxing at the same time. [PAR] [TLE] Valentijn Overeem [SEP] Valentijn Overeem (] ; born 17 August 1976) is a Dutch professional mixed martial artist and kickboxer currently signed with United Glory.  A professional competitor since 1996, he has previously fought for the PRIDE Fighting Championships, RINGS, KSW, the World Fighting Alliance, K-1, M-1 Global, Its Showtime, World Victory Road, and Strikeforce.  He is the older brother of fellow MMA fighter Alistair Overeem.
[PAR] [TLE] Alistair Overeem [ SEP ] Alistair Cees Overeem ( ] , ; born 17 May 1980 ) is a Dutch mixed martial artist and former kickboxer . He is a former Strikeforce Heavyweight Champion , DREAM Interim Heavyweight Champion , K-1 World Grand Prix Champion , and is one of only two fighters to hold world titles in both MMA and K-1 kickboxing at the same time . [PAR] [TLE] Valentijn Overeem [ SEP ] Valentijn Overeem ( ] ; born 17 August 1976 ) is a Dutch professional mixed martial artist and kickboxer currently signed with United Glory . A professional competitor since 1996 , he has previously fought for the PRIDE Fighting Championships , RINGS , KSW , the World Fighting Alliance , K-1 , M-1 Global , Its Showtime , World Victory Road , and Strikeforce . He is the older brother of fellow MMA fighter Alistair Overeem .
What two kickboxing organizations did the brother of Valentin Overeem hold titles in at the same time?
What two kickboxing organizations did the brother of Valentin Overeem hold titles in at the same time ?
MMA and K-1
MMA and K-1