Promoted Sunderland, who have defied expectations to stay in the top half of the Premier League table, could be the worst affected with six players going to the tournament, while the likes of Fulham, Manchester United, Burnley and Crystal Palace will also have to make do without some key personnel.
Chelsea paid a heavy price for a 3-2 defeat at West Ham United as first Liverpool, then Manchester City, leapfrogged them in the English Premier League title race on Saturday, with City ending the day on top for the first time this season.
Arsene Wenger's final match at Old Trafford as Arsenal manager ended in defeat with a stoppage time header from substitute Marouane Fellaini earning the points for second-placed Manchester United.
IMAGES from the English Premier League matches played on Sunday.
Chelsea reached the League Cup quarter-finals thanks to two own goals in a 3-2 win over second-tier Derby County on Wednesday as Frank Lampard's return to his former club ended in disappointment.
Olympiakos Piraeus secured a surprise 3-2 victory over last year's Champions League runners-up Atletico Madrid to make a dream start to their Group A campaign on Tuesday.
Images from Saturday's action in the Premier League.
Images from EPL matches played on Wednesday
Images from Sunday's action in the Premier League.
Manchester City stayed ahead of age-old local rivals Manchester United at the top of the Premier League on Saturday with a deserved 1-0 win away to champions Chelsea.
"After feeling strange in the second half of the Burton game in September, I underwent a series of tests," he said.
Kevin De Bruyne, Kelechi Iheanacho, Raheem Sterling and Ilkay Gundogan gave Man City a 4-0 win over Bournemouth before Nolito was sent off.
Manchester United eased the pressure on manager Ole Gunnar Solskjaer with a 3-1 win at Everton in the Premier League on Saturday with Bruno Fernandes scoring twice and Edinson Cavani grabbing his first for the club.
Images from the English Premier League matches played on Saturday
Barcelona lost ground on La Liga leaders Real Madrid when their 11-match winning streak was snapped by Malaga, while Premier League pacesetters Chelsea dropped points at home to Burnley. Bayern Munich enjoyed a second-successive goalrush in the Bundesliga after routing Paderborn 6-0 while AS Roma lost ground to Serie A leaders Juventus after yet another draw. This and more from the happenings in the world of football over the weekend.
Jose Mourinho's Chelsea turned from domestic whipping boys back to European stalwarts on Wednesday, beating his former club Porto 2-0 to top Champions League Group G.