Williams deputy team principal Claire Williams says "there wasn't any real concern" that the team could lose Valtteri Bottas despite acknowledging interest from other teams.

It was confirmed ahead of the Italian Grand Prix that Williams would be retaining its current driver line-up for next season. While Felipe Massa is in the first year of a three-year contract, Bottas' future was less certain and Williams admitted that his performances this season had attracted the attention of other teams on the grid.

"Of course when you've got a talent like him then there are going to be teams that are looking at him," Williams said. "But I think Valtteri started his career with Williams, he's an exceptionally loyal driver and he wanted to continue with the team. So there wasn't any real concern that we were going to lose him."

Related Articles

And Williams was also pleased to retain the two drivers as a pairing, saying they provide a good balance for the team to seek progress with.

"I think we've got one of the strongest line-ups on the grid. We've got really complimentary talents. We've got Felipe with all his experience and having worked in a big team and then Valtteri who has got this amazingly natural talent with his race-craft. I think they complement each other perfectly and I think we're really lucky in that. They're very balanced drivers, they've got a great equilibrium that we can take advantage of."

Speaking about Massa's qualities, Williams said the move from Ferrari had come at the perfect time for both Massa and the team.

"I think there's still more to come. This has been a new start for Felipe. When we were having those conversations with him earlier last year about bringing him in to the team he made it very clear that he wanted a new start. He had been at Ferrari for a long time and I think where we were last year wanting 2014 to be a new start for us as well, there was a real coming together."