Arsenal must fight off interest from Paris St-Germain, Monaco and Bayern Munich to convince Laurent Koscielny to sign a new contract. Koscielny has been Arsenal’s most consistent player this season and has developed into one of the best central defenders in the Premier League. His form has alerted PSG, Monaco and Bayern Munich, with all clubs aware Koscielny is on relatively modest wages of around £50,000 a week at the Emirates Stadium. That is less than defensive partner Per Mertesacker, who signed a £90,000-a-week deal last month, and Thomas Vermaelen, who earns £70,000 a week. Arsenal want to address Koscielny’s salary with the offer of a new contract and a wage rise to match Mertesacker on £90,000 a week, and remain hopeful that he will commit to the club. PSG, Monaco and Bayern are all carefully watching the situation, and are prepared to offer Koscielny bigger deals than Arsenal. Sources in France also claim that Manchester United are interested in the 28-year-old. PSG and Monaco are both in the market for a central defender this summer. PSG are also interested in Chelsea’s David Luiz. Pep Guardiola, the Bayern manager, has been a fan of Koscielny since he was in charge at Barcelona. Failure to win the FA Cup or qualify for the Champions League may make Koscielny seriously consider his future, while, like everybody at the Emirates Stadium, he is keen to see whether Arsène Wenger, the manager, signs a new contract.