Sporting CP are pushing to secure Bas Dost to a new deal.
The Dutch centre-forward is interesting Everton and West Brom ahead of the January - of which Sporting are aware.
Currently tied to Sporting until 2020, O Jogo says president Bruno de Carvalho wants to extend the agreement another two years and up his salary.
Carvalho knows Everton and Albion are among clubs keen and is anxious to secure Dost to new terms before the January market.
The new contract could also include a buyout clause.
Source: tribalfootball.com