Carlson has made no secret of wanting to follow in the footsteps of other successful Indy Lights teams such as Sam Schmidt Motorsports in moving up to the full IZOD IndyCar Series in due course, and had already employed veteran mechanic and former team owner Greg Beck with expansion in mind.
Now with Lotus in urgent need of a partner for the Indy 500, the opportunity to make its IndyCar début was clearly too good for Fan Force United to pass over.
Alesi is now expected to join other series rookies including fellow F1 graduate Rubens Barrichello at IMS on Thursday to undergo the Rookie Orientation Program that all oval newbies must pass before being eligible to run in qualifying for the Indy 500.
"I feel ready for the Indy 500, but also I am very happy to be doing the rookie test," said Alesi. "This will give me time to gain confidence and the feeling for the car and the track."
The formal Opening Day of track activity at the 2.5-mile speedway is on Saturday, with qualifying for the Indy 500 taking place over the following weekend.