Sam Allardyce believes a lack of winter break is hampering Premier League clubs in European competition . Chelsea were eliminated from the round of 32 in the Champions League by Paris St Germain on away goals on Wednesday night - whilst Manchester City and Arsenal both need to turn around first-leg defeats to Barcelona and Monaco , respectively if they are to advance . Liverpool and Tottenham have been knocked out of the Europa League with only Everton still standing and Allardyce feels a heavy festive schedule always catches English clubs out . West Ham boss Sam Allardyce says Premier League clubs are suffering in Europe because of no winter break . Chelsea were dumped out of the Champions League on Wednesday night by Paris Saint-Germain . Thiago Silva 's ( right ) extra-time header meant the French giants went through 3-3 on away goals . ' I think , like I have before , that we do n't help ourselves with our fixture list , ' the West Ham boss said . 'Playing as many games as we do through Christmas and New Year and not having the opportunity to shut the league down for a few weeks gives every club that plays in Europe a disadvantage . 'When they come back to playing in Europe they may have a considerable amount of injures in certain areas and mental fatigue kicks in on players - that is bound to have an effect when other teams have had the opportunity to take a break . ' Swansea boss Garry Monk hailed the entertainment level of the Premier League but believes English clubs still lack the tactical nous of their continental counterparts . Everton are the only Premier League club still standing in the Europa League . Swansea boss Garry Monk says Premier League clubs should be doing better in Europe . ' I 've always said the Premier League is the best league in the world but more so for entertainment rather than technical and tactical situations in countries like Spain , ' he said . 'The Premier League is the best league in that it is the most entertaining , highest tempo , most ferocious and so much happens . 'Whether we need to improve on the tactical I 'm not sure but we 've got some of the best managers in the world in this league . 'It is very fine margins at that level as games are won and lost by one or two moments in a game . 'Looking at those players in those Premier League teams you think they would do better in those competitions . So I 'm not sure if it 's one of those seasons or if there is a fundamental problem . '
Chelsea were knocked out of the Champions League last 16 by PSG . The Blues have won just one game in their past seven Premier League games and are now eight points behind leaders Manchester City with five matches remaining.