Sergio Conceicao is a candidate to replace Julen Lopetegui as West Ham boss, talkSPORT understands.
He Hammers The season seemed to take a turn last week when they beat Newcastle, but then were thrashed 5-2 by Arsenal on Saturday.
West Ham have four wins in 13 Premier League games and are 14th in the standings, eight points off the European spots.
Lopetegui He has failed to turn them into a competitive team and there is increasing pressure on him to improve his results.
However, if West Ham decide to make a move, Conceicao could compete for the London Stadium job.
Conceicao left Porto in June after a seven-year spell in which he won the Portuguese league title three times.
The 50-year-old coach, who previously played for Olhanense, Academica, Braga, Vitoria Guimaraes and Nantes, also has champions league experience.
West Ham manager Tim Steidten is understood to be a big admirer of Conceicao.
talkSPORT reported last month that he has become of interest to West Ham and other Premier League teams that wish to change coaches.
Conceicao is the latest name linked as a possible replacement for Lopetegui, who replaced David Moyes in the summer.
Former Borussia Dortmund coach Edin Terzic has been rang of West Ham and is admired by club boss Steidten.
Terzic has past experience with the Hammers, having been assistant coach to Slaven Bilic during his tenure from 2015 to 2017.
West Ham's loss to Arsenal was the sixth game in all competitions this season in which they have conceded at least three goals.
Opposing teams have scored against them 24 times in the Premier League alone and they have a goal difference of minus seven.
Although their current league position makes disappointing reading, the upcoming matches offer great chances of climbing up the table.
They first travel to 16th-placed Leicester City on Tuesday night, who recently appointed Ruud van Nistelrooy as manager.
West Ham then return home this weekend to face a Wolves team who are in the relegation zone and have only won twice.
Bournemouth and Brighton will emerge as tough tests before facing bottom club Southampton.