Feirense's Paul Pogba-esque midfielder Oghenekaro Etebo has reportedly been watched by both West Brom and Arsenal.
FC Porto's in-demand attacker Yacine Brahimi knocked back Everton last summer - meaning West Ham are up against it if they go in for him over the coming weeks.
The Brazilian, owned by Benfica but on loan at Besiktas, was the subject of £20 million bids from both Wolves and Liverpool last summer.
While Sunderland sold Coates to Sporting Lisbon for £4m, they signed Papy Djilobodji for double the price.
The 25-year-old has scored for fun at Vitoria Guimaraes but could he really repeat the trick at Tottenham Hotspur?
The on-loan Besitkas striker would be a huge hit at Norwich City - but Wolves cannot let that happen.
The Sporting Lisbon defender has fallen out of favour, potentially impacting his seemingly inevitable summer exit with Everton and Southampton linked.
The Everton-linked Porto attacker has signed up with Jonathan Barnett - one of England's top agents.
Owls scouts were reportedly spotted in Portugal at the weekend.