The Daily Mail reported last summer that Tottenham Hotspur were keen on the 28-year-old and were offered his services on a season-long loan.
No deal was struck at that stage, but Spurs are said to still be monitoring the defender.
They are not the only ones in England, though, to be casting admiring glances in the direction of the Portuguese capital.
Queens Park Rangers are looking for recruits that can help to steer them clear of relegation danger and are favouring loan deals with funds thin on the ground.
Sunderland have also been linked with Lopes, along with Aston Villa and Stoke City.
An agreement through to the end of the season has been mooted by O Jogo, with the option of a permanent deal to be discussed in the summer transfer window.
Lopes would add international experience to the ranks of a Premier League suitor, having made four appearances for his country.
He has also spent spells outside of his homeland in the recent past at Real Betis and Lyon, so should have no problem to adjusting to new surroundings.
Those hoping to secure his services may have to move quickly, though, if they are to fend off rival interest and wrap up a deal for a man whose versatility allows him to operate on either side of a back four.