Former Chelsea and Paris Saint-Germain defender Thiago Silva has signed for Porto at the age of 41, the Portuguese club announced on Saturday.
Nottingham Forest will be hoping it is third time lucky as new manager Sean Dyche takes over the reins of the two-time European Champions for the visit of Porto in the Europa League on Thursday.
A resurgent Mohamed Salah scored one and set up another to inspire a clinical Liverpool to a 4-1 win at Porto in their Champions League quarter-final second leg on Wednesday that teed up a last-four clash with Barcelona.
Spanish goalkeeper Iker Casillas has extends his contract with FC Porto by a year.
