Porto have received mixed news on the injury front ahead of next week's UEFA Champions League clash with Liverpool.
Former Tottenham misfit Helder Postiga will miss the clash against Liverpool after picking up a knock on international duty, but Helton has recovered from injury.
Postiga suffered a knee injury in training with Portugal which ruled him out of last weekend's draw with Poland.
Scans have shown that Postiga has damaged knee ligaments and he faces up to a month on the sidelines.
Better news on the injury front is the return to fitness of Helton after a knee injury.
The Brazilian keeper is set to face Maritimo this weekend and if he comes through that unscathed he is expected to start against Liverpool.