However, it's not the Aussie who Ferrari are focusing as the Spaniard believes Sebastian Vettel, who is the reigning champion and 42 points off the pace, and McLaren driver Lewis Hamilton, who is a further five adrift, are his main rivals.
"Hamilton and Vettel are the drivers we have focused on since the beginning," crash.net reports Alonso as having told Totalrace.
"They are the biggest challengers, but all of the teams are close. Hopefully, they will fight among themselves and not one of them will dominate."
The Spanish Ferrari driver has warned that it could yet be a six way fight for this year's title as, with 25 points for a victory, one or two good results could close the gap.
"I think the distance between the top five, top six is not impossible to recover. You just need one good race or two good races and you are up there," Alonso added.
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