Mumbles Head was the second of trainer Peter Bowen's charges to be guaranteed a spot in the starting line-up in 2013, primarily due to the announced injuries and withdrawals that opened up some spots. He joined stable mate Always Waining on April 6th.
It had been a slow season for Mumbles Head and he had only run three times, the last of which was back in December 2012 at Haydock where he pulled up. In his race prior to that, at Aintree in the Becher Chase, he fell so all in all his form was very questionable, particularly as he hadn't been tested again since then.
That could have been due to the fact that half of all race meetings had been cancelled in the season due to the very poor weather so perhaps the races he had been aimed at had not gone ahead leaving him somewhat in the limbo as to where to get a run out.
Either way, it didn't change the fact that preparations had probably not gone to plan for Bowen and Mumbles Head. In all he'd gone to Aintree on four different occasions and from that managed one 3rd place finish and that was in October 2012.
Issues with Mumbles Head included the fact that he was now 12 years old, he would only be carrying 10-04 and that he'd been off form having previously been quite a decent chaser. If Bowen had somehow managed to get him back to that form then he could've finished the race but he refused for jockey Jamie Moore at the 30th fence and bowed out of the National.
Given his age it's highly unlikely he will be back for the 2014 Grand National.