Mercedes GP's Lewis Hamilton has said that he would not be in favour of Mercedes supplying Red Bull with their engines.
Red Bull are on the lookout for a new engine supplier, with their relationship with current partner Renault having gone sour after two poor seasons. While they have a contract with the French manufacturer until the end of the 2016 season, the Milton Keynes outfit are interested in joining forces with Mercedes from the start of the next season.
Mercedes already supply engines to Williams, Force India and Lotus, but Hamilton feels that adding Red Bull to that list would be hugely detrimental to his team's chances of wining the World Championship, having dominated both the Drivers' and Constructors' standings for the past two years.
"If we are serious about winning the world championship, probably not," Hamilton told Sky Sports when asked if supplying Red Bull was a good idea.
"Red Bull are a great team, but it's like giving Ferrari our engines."
Hamilton added: "We don't really need it. There is no financial benefit. We are good where we are."
Mercedes team principal Toto Wolff admitted that the move would not necessarily be best for the Merc team, but that there was a bigger picture to consider.
"From a team perspective you have to have a no-prisoners approach and look in an opportunistic approach," he said. "But it's also a matter of what we can do to make F1 function."
There have been suggestions that Red Bull have sent Renault a legal letter terminating the final year of their contract due to Renault's failure to meet a performance clause. Red Bull team principal Christian Horner refused to be drawn into a discussion on the speculation and added that his priority is making his team competitive, and whether that involves using Mercedes engines as soon as possible remains to be seen.
"We have an agreement with Renault until the end of 2016 and anything other than [that] is purely speculation at the moment."
He added: "Our aim is to be as competitive as we can as quickly as we can. First of all, we want to understand what the situation with Renault is and what commitment they have to making sure they are competitive."