They had high hopes of leaving Mexico with a decent haul of points, but the racing weekend ended in frustration for Kimi Raikkonen and Antonio Giovinazzi.
Raikkonen started 14th on the Autódromo Hermanos Rodríguez grid on Sunday, one place ahead of his Alfa Romeo team-mate, but his race was compromised on the opening lap as he got picked up damage after getting sandwiched.
He continued for a couple more laps, but eventually retired after 13 laps.
It meant a sixth consecutive race without a top 10 finish for the Finn, but he is hoping his fortunes will change in Texas next weekend.
“It’s a shame to have to retire from the race because generally we had been a bit happier with things this weekend,” the Finn said.
“Unfortunately, much of our day was decided at the start. I got squeezed between two cars and a big chunk of my floor was destroyed. The cooling was damaged too and later in the race the temperatures went very high and we had to stop the car.
“It’s unfortunate but that’s how racing goes sometimes. At some point our pace wasn’t too bad, so let’s hope we can keep improving next week.”
Team-mate Giovinazzi finished the race, but he was also pointless as he was down in P14 as a problem at the pit stop cost him dearly.
“My start wasn’t too bad and in the opening phases I was racing with the Renaults and Racing Points, but the pit-stop issue cost us a lot of time,” the Italian said.
“After that, with no Safety Car or VSC, our race was effectively compromised. I was pretty much on my own for the rest of the afternoon, so it’s hard to tell where we stood in terms of pace. We will need to work hard to get back in time for next week, in Austin.”