Last updated at 17:04 GMT
Fernando Alonso has insisted he is "very happy" at Ferrari amid claims he has approached Red Bull about moving there for next season.
Sources say Alonso's manager has told Red Bull the Spaniard is potentially available to partner Sebastian Vettel.
Asked whether his representative had approached Red Bull, Alonso said: "I don't think so. Not that I know."
"We're in the fortunate position where there is quite a lot of interest," said Red Bull boss Christian Horner.
"We'll take a bit of time over the summer to reflect on the options that are open to us and look to make the right decision to put the right driver alongside Sebastian before next year."
When it was pointed out that he was not denying Alonso had approached Red Bull, Horner said: "Any conversations between any of the parties are always going to remain confidential. Of course there have been quite a few drivers [who have] expressed an interest in the seat."
He added: "The pairing has to be right for the team.
"Last week there was speculation about Kimi [Raikkonen]; this week it's about Fernando.
"We want to make sure nothing wavers in our mind about putting the right team package together with the two fastest drivers we can, who will work collectively well together and achieve the best results for the team."
Alonso dropped from second to third in the championship, one point behind Raikkonen, after finishing fifth in the Hungarian Grand Prix on Sunday, in which leader Vettel finished third behind Mercedes driver Lewis Hamilton and Raikkonen.
Alonso said: "Obviously we need to improve the car and we want to have chances to win the world championship. August with four weeks with no Formula 1 is a very dangerous period for you guys. Hopefully we have a quiet summer."
2. Kimi Raikkonen Lotus 134
3. Fernando Alonso Ferrari 133
4. Lewis Hamilton Mercedes 124
Vettel was asked after the race what he felt about the idea of Alonso joining Red Bull, who along with Raikkonen are also considering Toro Rosso's Daniel Ricciardo for their second seat next season.
He said: "I'd prefer Kimi. I have to be careful now. Nothing against Fernando; I really respect him a lot as a driver. I respect Kimi on track and off track because he has always been really straight with me. Form that point of view, it might be a bit easier."
Ferrari team boss Stefano Domenicali said: "First of all we have a contract with him [Alonso] and for sure everyone knows about it.
"Fernando is an asset for the team. We need him to work very closely with everyone at this difficult moment in the season."
Ferrari insist Alonso has a cast-iron contract until the end of 2016, with no get-out clauses of any kind, and say he has made no contact with Red Bull.
They believe the claims that Alonso has approached Red Bull are mischief-making by their rivals aimed at destabilising the Italian team at a crucial moment in the championship.
Alonso's manager Luis Garcia Abad told BBC Sport there had been "no discussions" with Red Bull.
He said a meeting between himself and Horner on Friday at the Hungarian Grand Prix was about Red Bull junior driver Carlos Sainz, who is also represented by Abad.
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