Christian Horner says he is keen to see what Daniel Ricciardo can do ahead of the Australian's outing with Red Bull Racing on Thursday.
The 24-year-old was due to drive the RB9 today [Wednesday] before the team took the decision to change its programme – with Mark Webber now no longer in action and Ricciardo instead getting behind the wheel on Thursday afternoon.
Ricciardo is now believed to be in a two-man race to replace Webber next year alongside Lotus man Kimi Raikkonen and Horner said he was eager to see what the Toro Rosso man was capable of.
"We're very keen to have a look at Daniel as a prospect for next year," he told Sky Sports News
. "Obviously there is a great deal of interest in the seat, but it's an opportunity to have a look at Daniel and for him to do some of our tyre-testing work in our RBR car. It's a great opportunity for him.
"You have to look at what these drivers have at their disposal and for sure both Jean-Eric and Daniel are very quick drivers, and we have an opportunity to take a closer look at Daniel which is why we have chosen to exercise that and get him in the car tomorrow."
While Raikkonen remains the hot favourite to partner Sebastian Vettel next year, Horner said the team would take as long as it needed to ensure it made the correct decision.
"Kimi's track record speaks for itself and he's a championship contender as we speak,” he said. “We're in a fortunate position in that not only are we attracting fantastic drivers like Kimi but we've also got the opportunity to look at the drivers we have been nurturing in the likes of Daniel.
"We get paid based on where we are in the Constructors' Championship so therefore we want the fastest and best drivers we can get in the car. We'll take our time to make sure that whoever fills Mark's shoes - and they are big shoes to fill - is the right choice for the team."