Having raced wheel-to-wheel with Daniel Ricciardo in Germany, Fernando Alonso has praised the "very smart" and "very respectful" Aussie.
Battling for position in the closing stages of Sunday's race at the Hockenheimring, Alonso and Ricciardo raced wheel-to-wheel.
The Ferrari driver, who decided to "fight with Ricciardo" rather than save fuel, won the battle, finishing fifth to Ricciardo's sixth.
The double World Champion was full of praise for the new Red Bull driver, who has proven himself throughout the season.
"Daniel is a surprise from Australia. I think he's doing unbelievable," Alonso said. "I think he's seven-three in the first ten races with Sebastian [Vettel], so it's something we probably didn't suspect.
"He's driving fantastically and he was battling very smart - always taking the slipstream off me after I pass him and braking very late, attacking very late and never missing a corner.
"He was very, very smart, very respectful with the rules and it was a great fight."