The Reds have spent big money improving this summer, but Parlour still has a doubt.
The 23-year-old arrived from Oxford United after a goal-laden season in League Two.
Sunderland could bring in a number of new players in the weeks ahead.
The US Under-23 international midfielder got his first extended taste of senior football on loan at Rangers last season.
Serie A side Lazio are keen on the Frenchman's signature.
Valencia has rapidly fallen out of favour at the Hammers under Slaven Bilic and looks set to complete his exit.
The Reds have spent heavily on improving their forward options this summer.
The Tottenham Hotspur boss will not be bringing in any more central defenders this summer.
Warburton has been a hit at Ibrox since taking charge last season.
Leeds United have been linked with some interesting targets in recent days.
Leeds United are set to take on Wigan Athletic later this evening.
West Ham United moved into the London Stadium in the summer.
Released by Wigan Athletic, Wabara was a summer target for Leeds United but remains without a club.
The Spurs striker has suffered due to the form of Heung-min Son.
Jamie Redknapp is backing Manuel Lanzini to go on a run of form.
Dele Alli scored Tottenham Hotspur's late equaliser against West Bromwich Albion yesterday.
Radical changes to the business model ?
Eric Dier could drop back into defence to replace the injured Toby Alderweireld.
Gaetano Berardi is set to feature for Leeds United against Wigan Athletic.
The 3,240 yen ($31) of cash framed on Hideto Fujino’s desk is a constant reminder of his greatest humiliation.
Deutsche Bank said second-quarter revenue dropped at its prime finance unit, extending a slump beyond businesses that the lender is seeking to exit as client concerns added to volatile markets.
Crude oil prices will remain in the $45-$50-a-barrel range till mid-2017, with little to change the global supply and demand situation, Goldman Sachs said.
Sam Allardyce has suffered his first setback as England’s new manager after Bayern Munich blocked the Football Association’s attempt to make Paul Clement part of the new regime.