Ghanaian hotshot Samuel Affum has joined Young Boys from Alexandria's Smouha, the Swiss club announced on their website. Affum, who was targeted by Egyptian champions Ahli for nearly a year, signed a three-and-a-half-year contract with Young Boys for an undisclosed fee. The 22-year-old has been one of the most deadly non-Egyptian strikers in the Premier League over the past two seasons, scoring almost half of his team's goals last term. Ahli will now have to move for another foreign striker as they intend to reinforce their roster in the January transfer window.