Cape Town - South Africa captain Dean Furman knows his side will need a vast improvement on their finishing if they are to progress past the group stages at the 2015 Africa Cup of Nations. Bafana Bafana suffered a 3-1 defeat in their Group C opener against Algeria on Monday, where a series of missed chances - including one from the penalty spot - cost Shakes Mashaba's men dearly.And, with the side set to take on Senegal on Friday, Doncaster Rovers midfielder Furman is hopeful they can start turning their chances into goals, or risk suffering an early exit."It is not the kind of start we wanted; we had worked hard for maximum points so the next two games are very crucial for us," said Furman."We have to lift our heads and go for a win and that’s all we need. The good thing is that we played some outstanding football out there. We are just very disappointed not to come out with a win."We really played very well but did not convert our chances, something we will have to rectify before our next match."