Fernando Alonso says he just didn't have the pace to challenge in Monaco, even before his F138 was compromised by a piece of Sergio Perez's bodywork.
The Ferrari started Sunday's 78-lap grand prix in sixth place and was unable to make up positions at the start.
Added to that, Alonso soon lost ground to the frontrunners, falling further and further back.
His efforts to fightback where undone when a piece of Perez's bodywork became lodged in Alonso's front wing, hampering his car's aerodynamic performance.
As the race progressed, Alonso lost a position first to Perez and then to Jenson Button and Adrian Sutil. He finished P8.
"With a bit of Perez's car in our front-wing we lost a bit of aerodynamic performance in the last part of the race," the Spaniard told Sky Sports F1.
"But even in the first part of the race, when everything was normal, we just didn't have the pace.
"We know to understand why it happened and when we are back to Canada then I hope that everything will be back to normal."