Twelve months on from celebrating atop the podium after winning his first-ever F1 race, Daniel Ricciardo says he is 'banging his head against the wall' after enduring a dismal afternoon in this year's Canadian Grand Prix.

Already disappointed to be starting ninth on the grid, behind his team-mate Daniil Kvyat, Ricciardo would spend his afternoon fighting a rear-guard action in the Red Bull, slipping down to 13th position at the chequered flag, even behind the Toro Rosso of Carlos Sainz.

His worst result of the season and one that he admits is a measure of the struggles facing the former title-winning Red Bull team at this time, Ricciardo was at a loss to explain exactly why he was so slow, particularly as Kvyat went on to finish in the points in ninth.

"We tried and nothing worked," he said. "We didn't have pace. It is nearly a mirror race of 2013 for me. Jean-Eric was sixth, his best result of the season, and I was like 15th. We were a second slower and didn't have any answers for it. Then the year after I win and now I am struggling to keep up with anyone on track.

"At the moment all I can do is laugh. Race cars are complicated. Some days you don't understand them... unfortunately we haven't really got on top of it this weekend, but we didn't expect to be that slow in the race.

"I knew I wasn't fight for points but I was still fighting and trying to get as much out of it. It was just one of those races where you go round and round... I am banging my head against the wall. There is nothing good coming out of it.

"I got lapped by a Williams, so that is a pretty bad day for us."