By Jelani Scott The NFL legend celebrated his 39th birthday in style Saturday night. View the original article to see embedded media. Former NFL star Frank Gore celebrated his 39th birthday in style Saturday night with an impressive win in his professional boxing debut. Gore scored a fourth-round knockout victory over Yaya Olorunsola in the co-main event of Gamebred Boxing 1 in Biloxi, Mississippi. The five-time Pro Bowler shared a video of the KO and his post-fight celebration on Twitter. “Today was a great day!!! Want to thank my team for all the hard work,” Gore wrote in the caption along w…