Estádio do Dragão star could be on his way to Anfield or the Emirates.
FC Porto defender Rolando is a £20million target for Liverpool and Arsenal according to his agent Peppino Tirri.
The 25-year-old is under contract until 2014 and is apparently open to a move to the Premier League.
The Portugal international has won 10 caps for his country and has helped his side win the Portuguese league with five games to spare.
Liverpool have been linked with a move for the defender for a while as they seek a long-term replacement for Jamie Carragher and Sotirios Kyrgiakos.
Now Arsenal have entered the race as their own defensive frailties have emerged again and again this season.
Tirri claims there are two Premier League clubs after the highly-rated centre-back but the two teams could face more competition from Europe.
“Two English clubs have asked about the subject with me but the decision rests with Porto,” Tirri said.
“Rolando is a very talented player and it’s normal big clubs are interested.”