Fernando Alonso has insisted Andretti Cadillac Racing would be a "great name" to add to F1.
The Spaniard is the sport's most experienced driver and has seen new teams come and go since making his debut in 2001.
Andretti has moved onto the next stage of its entry bid after passing a thorough examination of its application by the FIA, with commercial discussions now underway with FOM [Formula One Management].
F1 and its teams have been cool on the prospect of an additional outfit going the 10 incumbents due to the financial implications the new squad will create.
Aston Martin Owner Lawrence Stroll has suggested an "on fire" doesn't need Andretti given its current strength and whilst Alonso, who raced with Andretti when making his Triple Crown bid at the Indy 500, has conceded he will trust whatever decision is made, the two-time World Champion has backed the American outfit's credentials.
"A great team - I know Michael and he would be a great name to add to Formula 1," Alonso told media including RacingNews365.com.
"But there are other people in charge of these kinds of decisions - the FIA, then FOM and the teams as well.
"So for me, I don't know exactly what to say, whatever will be the final decision is going to be ok.
"I like Michael, I like the organisation but I also understand other things.
"I will support whatever Aston Martin's position is - I will be ok with anything."
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On the prospect of having more competition on track, Alonso explained: "In F1, there is not much of a battle between teams.
"Even if we have 50 on track, we will only fight against one or two drivers because they have more or less the same package as you have.
"There have been some discussions in the past on having three cars per team and things like that, but you never know what is the best solution.
"We have very good people deciding these kinds of things, we trust completely the FIA and FOM so we are in good hands."