Marussia was left to rue issues for both Timo Glock and Charles Pic in Monaco after losing tenth in the constructors' championship.
The team had gone into the weekend holding the all-important championship position thanks to Glock's 14th place finish in the season-opener in Australia, with Glock matching that result on the challenging street circuit.
However, Heikki Kovalainen's 13th place finish for Caterham means they now move ahead of Marussia in the standings, with the Manor-run team left to rue a front wing issue for Glock in the closing stages that prevented him from taking advantage of Kovalainen being forced to pit for a new nose himself.
“A bit of a disappointing end to a race that started so well,” the German said. “We had good speed at the beginning and for the first 10 laps I could stick with Jenson quite well. We had good pace all the way until maybe the last quarter when the front wing end plate broke. We don't know for sure why; maybe because of the touch with Perez early in the race. We will have to see what caused it.
“I'm generally happy with my performance and that of the team, but its disappointing to hold on to tenth place for so long and now drop back. That's racing though and not for long we have to hope. Now we focus on Canada and look forward to some better luck.”
With Pic forced to retire with an electrical issue after a solid run in the second car, team boss John Booth admitted to having mixed emotions.
“This has been a disappointing race all round for us in terms of how it concluded,” he said. “Unfortunately, given the way the race played out at the end, despite Kovalainen's front wing change the problems on both our cars meant that he was able to retain 13th position, which means we have slipped back from tenth place in the Championship.
“However, looking at the positives, the race pace on both our cars was good and Timo was in line to finish without being lapped. It was therefore very frustrating that he lost his right front wing end plate in the Swimming Pool section. We have yet to determine how this happened, although a likely scenario is damage incurred at some other point in the race that weakened the end plate and it eventually came off. For Charles, unfortunately he retired on lap 65 due to a chassis related electrical issue which caused the engine to stop. We will take the lessons we've learned from this weekend and apply them positively as we prepare for the next race and beyond.”