The Argentina international has been a long-term target for Manchester United.
A Bola says Arsenal are monitoring Gaitan's situation and considering making a bid for the midfielder.
Gaitan penned a new deal last season to 2016.
Tribal Football Staff are dedicated to the football tribes from all over the world. Our team is passionate about delivering football news to our hundreds of thousands of followers in all the corners of the globe. Football is life, It never stops, Neither do we.