David Beckham pays classy tribute to Robbie Keane on Instagram

Ireland striker's final international game will be on August 31st

David Beckham, Robbie Keane, Los Angeles Galaxy

Los Angeles Galaxy's David Beckham, right, and Robbie Keane, left, celebrate winning the MLS Western Conference championship (AP Photo/Ted S. Warren)

David Beckham has paid tribute to Robbie Keane as the Ireland striker's final international match approaches.

Keane will retire from Ireland duty after the August 31st friendly against Oman at the Aviva Stadium.

His former Los Angeles Galaxy team-mate, Beckham, shared warm words about the Dubliner on his Instagram account, emphasising his "Passion and love for the game".