The Daily Star says the Blues boss is sweating on a deal for Bolton’s Gary Cahill, which has stalled over personal terms.
But he is being linked with a move for Porto’s Brazil striker Hulk – real name Givanildo Vieira de Souza.
“Apart from a central defender, we might get one more player in but we are not sure yet,” said the Portuguese coach.
“Top talent is normally cup-tied in the Champions League or domestic competitions, but it is difficult for the selling club to make players available.
“Normally it is a market where you overpay a lot and we don’t want to do that.”