The form of Chelsea striker Nicolas Jackson has certainly been one of the biggest talking points around Stamford Bridge for the first half of the season. Nicolas Jackson, 22, has been one of the main starters for the Blues since his summer arrival. The forward’s scored eight goals in 23 Chelsea appearances so far, but he’s now joined up with Senegal for the Africa Cup of Nations tournament. In fairness, he’s still come under-fire for plenty of criticism despite some important contributions. His lack of composure in front of goal is a problem he’ll certainly hope to grow out of. The Evening Sta…