Real Madrid are ready to offer 20 million for Chelsea and Arsenal target Mario Mandzukic. The Spanish giants are prepearing a ˆ25 million bid for the Bayern Munich striker as they look for a partner for Karim Benzema, according to Spansih source The Croatian forward is widely expected to leave the Allianz Arena in the summer with the impending arrival of Robert Lewandowski from Borussia Dortmund. Arsenal, Chelsea, Barcelona and Juventus have all been monitoring the Crioatian and are reported to have made an offer for the player. Mandzukic has been a vital cog in the recent success of Bayern Munich. The Croatian has scored 23 goals in 44 appearances for club and country this season and has helped Bayern claim a second consecutive title. However, the impending arrival of Polish striker Lewandowski from Dortmund will likely see Mandzukic have a dimishing role at the Allianz Arena and he is expected be snapped up one of Europe’s big hitters in the next transfer window.