Krasniqi made his professional debut on 20 October 2005, losing to Sven Haselhuhn in a four-round
points decision. In his third fight, on 5 January 2006, he lost another four-round decision to Adrian Cerneaga. Krasniqi would spend the next seven years undefeated, winning two regional
WBO light-heavyweight titles. On 20 April 2013, he made his first attempt at a world title, losing by
unanimous decision to
WBO light-heavyweight champion
Nathan Cleverly. A second opportunity at a world title came on 21 March 2015, this time against
WBA light-heavyweight champion
Jürgen Brähmer, who
stopped Krasniqi in nine rounds. Krasniqi won the vacant
European super-middleweight title on 2 June 2018, defeating
Stanyslav Kashtanov at weeArena in
Bad Tölz by unanimous decision. He retained the title with a unanimous decision win over Ronny Landaeta at Anhalt Arena in
Dessau-Roßlau on 17 November 2018, before losing the championship to
Stefan Härtel by unanimous decision at Stadthalle in
Magdeburg on 11 May 2019. On 10 October 2020, at
GETEC Arena in Magdeburg, Krasniqi became the first boxer born in Kosovo to be a professional world champion when he won the WBA
interim and
IBO light-heavyweight titles by scoring a third-round knockout against
Dominic Boesel. Almost exactly a year later, on 9 October 2021, he lost the IBO title in a rematch with Boesel at the same venue, going down to a split decision defeat. ==Professional boxing record==