Red Bull chief Christian Horner believes former world champion Fernando Alonso will return to Renault for 2008.
Alonso is searching for a new team after agreeing an early release from his contract with McLaren after a turbulent debut season with them.
The Spaniard won the world title with Renault in 2005 and 2006, but Red Bull had also been linked with the driver.
However, Horner told Spanish radio: "Our drivers are under contract in 2008. Alonso will end up at Renault."
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Alonso's relationship with McLaren soured following a series of rows with team boss Ron Dennis this season.
And although he finished level with team-mate Lewis Hamilton, one point behind Ferrari world champion Kimi Raikkonen, both parties agreed to move on.
After ending speculation of a move to Red Bull, Horner added: "We are pleased to be linked to Alonso, it shows the progress that we have made in the last two years.
"But Renault are the only team next to Toyota who have a free space and who have not announced their drivers for next season."
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