straight to your inboxKai Havertz is certain he will be allowed to leave Bayer Leverkusen in the summer transfer window.MEN Sport understand the German international has a 'clear wish' to leave the Bundesliga club at the end of the season with a move to the Premier League the most likely.Manchester United are believed to be one possible suitor for Havertz this summer but Chelsea currently lead the race to sign him after Bayern Munich pulled out of the running.