Dzhabar made his K-1 debut on March 17, 2007, at the K-1 MAX East European Tournament against Muay Thai superstar Buakaw Por.

He faced Buakaw Banchamek (then-Buakaw Por Pramuk) at the main event for Yokkao Extreme 2012 on January 21, 2012, in Milan, Italy.

[5][6] He was expected to fight Steve Moxon at Kings of Kombat 8 on December 8, 2012, in Melbourne, Australia but withdrew from the bout and was replaced by Mostafa Abdollahi.

[8][9] Askerov took possibly the biggest win of his career on January 26, 2013, when he defeated the legendary Andy Souwer by split decision at Yokkao Extreme 2013 in Milan, Italy.

[13] He was expected to face Mike Zambidis in the semi-finals of the Legend Fighting Show -71 kg tournament in Moscow, Russia on May 25, 2013.

[15] After dispatching Gogokhia with what Fight Sport Asia described as "one of the nastiest 70kg knockouts in recent history",[16] he faced Alim Nabiev in the final.

[17][18] Askerov defeated Yoshihiro Sato by unanimous decision at Tech-Krep FC: Southern Front 2 in Kyiv, Ukraine on December 8, 2013.