David Moyes
David Moyes [Reuters]

Former goalkeeper Mark Bosnich believes that the results from Manchester United's upcoming fixtures against Olympiakos and Manchester City could decide whether David Moyes will continue as manager.

The Red Devils' present task at hand is to overturn a 2-0 deficit against Olympiakos in the Champions League when the Greek champions come to Old Trafford for the last-16 second leg tie on Wednesday.

Moyes' side come into this game having suffered their seventh home defeat in all competitions after the 3-0 drubbing against their fierce rivals Liverpool last Sunday.

Following their European clash, the Glaswegian will take his players to Upton Park to face West Ham United on Saturday before the Manchester derby at home on Tuesday evening.

Earlier this season, United were thrashed 4-1 Manuel Pellegrini's side at the Etihad stadium. Bosnich believes that a repeat of the result will ultimately force the club's board to relieve the 50-year-old off his managerial duties.

"The two games [against Olympiakos and Man City] are huge. The West Ham match will take care of itself, but the results against those two will determine whether David Moyes stays at the club," Bosnich told talkSPORT.

"David Moyes is a wonderful man but things have gone from bad to worse. They've got big problems. You can see it out on the pitch. If we see another two abject performances, especially in the derby, I don't think the board will have any choice but to appoint someone else," he added.

The reigning English champions currently sit seventh in the league table having garnered 48 points from 29 matches so far.

The defeat against Liverpool left United, 18 points below the coveted first place where Chelsea are perched with 66 points from 30 matches.

United are 12 points behind fourth-placed City who have played 27 matches so far. However, lack of wins in their nine remaining league fixtures could result in the Red Devils finishing outside the top four for the first time in over two decades.

With their hopes of defending title slowly fading away, the former Everton manager will be desperately hoping for his side to perform in their upcoming Champions League fixture as this competition may be their only chance of lifting silverware this season.