That does not give the 35-year-old Spaniard much time. But despite those early setbacks, Alonso is no doubt a proven champion but he wants to prove to the world that he is a complete racer by winning the Indianapolis 500 and Le Mans 24 Hours.
"I would love to have Fernando to be in two places at one time but we can't, at least that technology has not yet been developed", Brown said.
"I believe Stoffel is going to be in the vehicle for some of the time". "But I'm not afraid of trying".
"Le Mans is something I will do, probably as soon as I can".
Indeed, he said his commitment to F1 remains high, with his target to "prove that I am the best and that I prepared myself better than ever". The first of Team Penske's record 16 wins came in 1972 with Mark Donohue behind the wheel of a McLaren. "It's good to go to America and showing this respect to IndyCar".
"Eric, who runs the F1 team, is ultimately responsible for making the recommendation as to what driver should go in the auto and he will be here at the weekend so I can save questions for him, he is working on it".
"There were two options".
The two-world champion even intends to test his new vehicle, a Honda-powered Andretti, in America the day after competing in his home race, the Spanish GP on May 14. For anyone wondering how the series would keep that momentum, having Alonso for the 101st makes a big difference. "That's very challenging and very attractive".
It is unclear when Alonso will get his first drive of an IndyCar on an oval, but Andretti expects he will not take long to get up to speed. "I don't know if it will be next year or the following years".
"I'm immensely excited that I'll be racing in this year's Indy 500, with McLaren, Honda and Andretti Autosport".
"In due course McLaren-Honda will announce the identity of the driver who will race Fernando's vehicle at Monaco", the team said on its website.
"The McLaren-Honda partnership, to be able run this in Indy 500, was very attractive this year".
Alonso's hectic preparations begin as soon as he steps out of the F1 cockpit after Sunday's race in the sweltering heat of Bahrain.
"I wouldn't do it - I give 100 percent, I push really hard, I'm here to do the best for the team", said Grosjean. "I will do the seat testing on Monday".
Alonso has 32 Grand Prix victories and 97 podium finishes in 275 F1 starts.
"Zak is a man that has a bigger vision than other team principals or bosses that I had". Alonso does not look the part in Formula One anymore but he is determined to cement his legacy in the racing world in a different way. Alonso's 2017 entry will carry the same orange livery in a nod to the team's storied history. In 2015, F1 driver Nico Hulkenberg won Le Mans with Porsche.
As for Alonso's decision to drop the Monaco GP for the Indy 500, Hamilton has applauded the decision.
"It's definitely a tall order in a short space of time".