straight to your inbox every day for freeDimitar Berbatov says Bruno Fernandes still needs to work on the defensive side of his game.The midfielder has been superb since joining Manchester United in January and in midweek scored a brace to help the Reds to a 4-1 win over Istanbul Basaksehir.On another day, the 26-year-old may have had a hat-trick but he opted to pass up the opportunity to take a penalty, instead letting Marcus Rashford score from the spot.Yet Berbatov says the Portuguese star