New Delhi, Dec. 17 -- Chelsea has seen a 44% spike in injuries after competing in the supersized Club World Cup this year, according to findings published on Tuesday.

But the newly expanded tournament has so far had a "minimal impact" on injuries overall, the latest edition of the Men's European Football Injury Index found.

There was fierce opposition to FIFA's new flagship club event when it was confirmed in 2023 that it would increase from seven to 32 teams, with players' unions warning of physical and mental burnout of players due to an ever expanding match schedule. But FIFA pressed ahead and staged the tournament in the United States in June-July.

Chelsea went on to win the inaugural competition, receiving the trophy from U.S. Pre...