Is Felipe Massa considering retirement U-turn?

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Felipe Massa clearly has a lot to consider over the Christmas break -- with a sensational return to Formula One currently high on the agenda.

Massa retired from F1 after the Abu Dhabi Grand Prix, with Williams announcing Lance Stroll to partner Valtteri Bottas during November. However, its driver line-up no longer looks secure, with Bottas the favourite to replace the retiring Nico Rosberg at Mercedes.

Williams appears to be willing to let Bottas leave for Mercedes -- a deal which would include an £8.4 million discount on its engine supply -- but only if an "experienced, credible alternative" was available. Claire Williams has named Massa, who drove for Williams between 2014 and 2016, as one such driver following a report in L'Equipe stating the team was in "advanced talks" with the Brazilian driver over a return next season.

Departing for his Christmas holiday this week, Massa tweeted the following message with an emoji suggesting he's got a lot to consider over the festive season:

If Massa does return, it would give him the chance to add to the 250 race starts he accumulated between 2002 and 2016.