Alonso's contract contains a clause that opens the potential exit to the Spaniard if he is not within 25 points of the championship leader on September 1, according to sources.
Team are only two points away from fifth place on Manufacturer Standings.
‘La Pista Magica’ is the next stop on the Formula 1 calendar.
On Friday test and reserve driver Giedo van der Garde will be driving the C33 during the first free practice.
The fastest F1 circuit held Round 13 of the 2014 Formula One World Championship on this weekend.
Reduced downforce levels lead to the highest top speeds of the year
Multi award winning musician and actor Lenny Kravitz has today been announced as the headline concert act at the 2014 Formula 1 Russia Grand Prix.
Federico Gastaldi: "It was highly unfortunate that we had to retire both cars today."
Kimi Raikkonen came very close to a podium finish in the Belgian Grand Prix