The Serbian stopper reckons his team have been left with no choice but to pick up maximum points in their remaining seven matches if they are to win the league.Milan Bisevac has claimed that Paris Saint-Germain must win every game until the end of the season in order to become champions of Ligue 1.The Parisians saw their title challenge take a significant blow following a run of three games without a victory, but put themselves back in contention after beating arch-rivals Olympique de Marseille 2-1 last Sunday.Bisevac told L\'Equipe: \"We have seven games until the end [of the season] and we need to win everything. If we weren\'t champions, it would be failure.\"The former Valenciennes defender also reacted to Montpellier\'s win against Marseille, but despite admitting that Rene Girard\'s men are currently in the driving seat, he was adamant the season still has a number of twists and turns left.\"I wasn\'t disappointed or surprised [to see Montpellier win against Marseille],\" continued Bisevac. \"When a club like Marseille has such a bad run, there is something wrong.\"I knew they weren\'t going to win. Montpellier is going to p**s us off until the end.\"Now, they\'re first with three points and with their goals advantage, they almost have a four point lead.\"It\'s going to be tight until the end and a lot of things can happen,\" he concluded.PSG are on 63 points in second place, three behind leaders Montpellier with seven games left.