Toto Wolff admitted the Mercedes team was "sorry to have let Lewis [Hamilton] down" after the Briton was forced to retire from Sunday's Canadian Grand Prix.
With Nico Rosberg just in front of his Mercedes team made at the halfway stage of the race on Montreal, both cars picked up a problem with their rear brakes, but while Rosberg was able to guide his W05 to second place, Hamilton was forced to retire.
The result means Rosberg now leads the Drivers' Championship by 22 points from his team-mate.
Wolff added that the team was ultimately disappointed with the result, but played down suggestions that it was a crucial result with respect to the destiny of the Drivers' title.
"We're just sorry to have let Lewis down," Wolff told crash.net.
"It's a shame, particularly when the championship is as close as it is, but he is in good spirits and he is a fighter. I have no doubts that he will come back.
"As for Nico, he deserves to take those points because he had a car which was heavily handicapped against all others. He managed to pull out a mega first sector where the power loss was not as bad as the back straight. The second sector was OK and he deserves to have that second place.
"How many races are we in to the season; seven? So we have another 13 races, we have double points ... I would guess that between the two of them it's going to come back to the end of the season with double points."
Wolff added that it was simply a case of bad luck that Hamilton was unable to finish the race while Rosberg managed to reach the chequered flag.
"We told both drivers to manage the brakes, because when you lose the electric motor you lose the electric braking so the brakes were overheating massively. So we changed the balance within the braking system and told them to be more careful. It's what both of them did - both of them complied with exactly what they were told - and then it's very marginal," he continued.
"Lewis entered in to the pits, stopped the car, the temperatures rise and when he went out the pedal just went soft and then fell out completely. On Nico's car he was lucky not to have that.
"The system was so hot that when he lost the cooling by being static in the pits the temperatures just peaked like a regular, conventional race car."
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