With the penultimate race of the 2010 season occurring on Sunday, the race for the World title is still wide open, with five driver's still in with a shot of taking home the Championship crown.
Two of those in the hunt are Red Bull drivers Webber and Vettel, with Webber 11 points behind Championship leader Fernando Alonso and Vettel sitting a further 14 points adrift.
For some time Red Bull have been implored by many to throw their weight behind one driver's bid, something they have refused to do, and Verstappen has now echoed those sentiments.
"Purely mathematically, the German has a chance to be World Champion. But the team really has to put everything behind Webber," the 38-year-old wrote in his column for De Telegraaf.
"He [Webber] has a better chance of winning the title.
"With Webber's gap to Alonso only eleven points, he has a much more realistic chance of winning the title.
"If Red Bull are to win the title it is crucial that at this stage of the title race that they make a choice."
The Dutchman admits that the decision is made more complex by the team's perceived favouritism towards Vettel, which has been a contentious issue throughout the season.
"Of course it's a difficult position for Red Bull," explained the Dutchman.
"Although they have never directly expressed a preference for Vettel, the whole world knows that the team bosses prefer the young German to his older Australian team-mate."
Source: http://www.planetf1.com