The Ugandan midfielder has joined the Kenyan champions after penning a two-year contract during the deadline day for the transfer window on Monday.
“I am delighted to join the Kenyan champions and this is is a big move for me in my career and I will strive to help the club achieve the targets they set for the season. I have always loved to play for Gor Mahia and I thank God that I finally have the chance to turn out for the great club.”
By the time of leaving Tusker, Sempala was the club’s captain but was among the players, who had reportedly fallen out with coach Robert Matano, which is the reason why they have been warming the bench in recent times.