Despite the season being less than four months old, there have already been 13 managers that have lost their jobs across the top four divisions in England.

The most high-profile departures have included Paolo Di Canio and Ian Holloway leaving Sunderland and Crystal Palace respectively, while three more bosses have departed their positions in the past seven days.

Below, Sports Mole picks out five managers that are under pressure to remain in charge at their respective clubs.

Fulham manager Martin Jol had appeared to be turning things around at Craven Cottage with back-to-back wins in October.

However, after four successive defeats, the Dutch boss is increasingly under pressure to halt that sequence with the Cottagers sitting in 18th position in the Premier League table.

The arrival of Rene Meulensteen has done little to ease the uncertainty at the West London outfit, with the former Manchester United coach already being mooted as a replacement for Jol should he depart the club.

The former Tottenham Hotspur boss has openly admitted that his job could be under threat, and the general feeling is that Fulham must gain a result at West Ham United on Saturday.

There appeared to be little pressure on Tottenham Hotspur manager Andre Villas-Boas until his side were trounced 6-0 by Manchester City at the Etihad Stadium last weekend.

That quickly resulted in reports suggesting that the Portuguese coach was close to losing his job at White Hart Lane, with his side struggling to cope with the departure of Gareth Bale.

Villas-Boas was allowed to spend the majority of the income generated from Bale's sale, but his new signings have failed to consistently impress in the opening months of the season.

Spurs secured a 2-0 victory in the Europa League against Tromso in midweek, but a defeat to Manchester United on Sunday will result in more speculation regarding Villas-Boas's position at the club.

Norwich City manager Chris Hughton made some impressive additions to his squad at Carrow Road during the summer as he attempted to challenge for a mid-table spot in the Premier League.

However, after just one win in seven matches, Hughton is starting to attract criticism as the Canaries boss, with his side conceding 14 goals in their last four games.

Norwich did defeat West Ham United before the international break, but they only sit above the relegation zone by one point.

Hughton's side host Crystal Palace on Saturday, with a victory likely to ease his doubters. However, a loss to Palace could put Hughton on the brink of the sack.

Sheffield Wednesday manager Dave Jones has endured a turbulent start to this campaign, with his side picking up just one win in 16 fixtures.

The Owls have only lost six times during that run, but after falling four points adrift of safety, Wednesday are in danger of losing touch with their relegation rivals.

Jones would also have been disappointed with his team's display against Huddersfield Town last weekend, while the club's supporters showed their frustration at the lack of unity in the starting lineup.

That could have been enough for the Hillsborough hierarchy to begin to consider Jones's position, and defeat to Blackpool on Saturday could see the former Cardiff City chief removed from his role.

After Dario O'Gradi's long association with the manager's position at Crewe Alexandra, it would seem unlikely that the club would consider sacking Steve Davis after just two years in charge.

However, after a run of eight games with a win, which has included six defeats, Davis is looking increasingly susceptible to being axed at the Alexandra Stadium.

The Cheshire outfit prefer continuity over changing positions hastily, but unless Davis can alter their fortunes over the next couple of weeks, he could become vulnerable.

Crewe face Crawley Town and Coventry City in their next two matches, and failure to win either fixture could see Davis leave the League One club.