When the photo finish confirmed that Tiger Roll and Davy Russell had held on to win the Grand National by a head from the fast-finishing Pleasant Company, the crowd’s exultant cheer could have been heard over the other side of the Mersey in Birkenhead. As ever there was a grand storyline: the oldest jockey in the race, at 38, won on the smallest horse running for an owner (Ryanair’s Michael O’Leary) who had once sacked him while urging him to prove him wrong.