Ferrari driver Felipe Massa was 'not pleased' with the behaviour of his F138 following practice on Friday for the Abu Dhabi Grand Prix.

Massa had a pretty miserable day, finishing the opening session at the Yas Marina Circuit in a lowly 17th, 1.883 seconds off the pace.

Although he improve in second practice and finished up tenth, he was still 1.105 seconds off the top time - and 0.269 seconds off team-mate, Fernando Alonso, who was eighth in the sister car and similarly unhappy [see separate story - HERE].

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"Today we got through the entire programme we had planned for this day, concentrating on set-up and the behaviour of the two Pirelli compounds. At the moment, I am not very pleased though with the car's behaviour, as we are not as competitive as I'd expected to be," confirmed the Brazilian.

"On this track, we found ourselves running in daytime in the sunshine, with very high temperatures, with the conditions changing completely in the evening and in this situation, it's not easy to understand which direction to go in.

"Now we will try and work out how to improve the car's performance for tomorrow's qualifying, which we know won't be easy, but we'll give it our best shot."

Ferrari technical guru, Pat Fry meanwhile agreed that the day had been difficult: "Here, in order to establish the best set-up, you have to take into consideration the changing track conditions between the first and second sessions. In both of them, we struggled to find the right grip level, especially on the Medium compound. In the late afternoon, the situation got better and we worked on the balance of the cars, but the results were not that satisfactory.

"The performance difference between the two compounds is very high and some cars, including ours, made up almost two seconds a lap.

"This unusual difference in performance from the Medium tyres clearly shows what a margin for improvement there is and that's why tonight, we will evaluate solutions better suited to giving our drivers a more competitive car," he concluded.