Speculation is mounting that Dublin star Jack McCaffrey will be ruled out of their All-Ireland title defence.

Reports have emerged claiming that work commitments means he will miss most or all of the championship.

The Herald say that the 22-year-old UCD medicine student will go for a stint abroad.

Comhghairdeas le Jack McCaffrey ó Áth Cliath; 2015 @GAAGPA @OpelIreland Footballer of the Year! #OpelAllStars #GAA pic.twitter.com/EhGvO2nrdY

— The GAA (@officialgaa) 6 November 2015

The left-half-back was a key man as Dublin got their hands on Sam Maguire last September, with his efforts rewarded at the All-Star awards.

The Clontarf club-man won the 2015 GAA/GPA All-Star Footballer of the Year crown, having won the Young Player award in 2013.