The Premier League confirmed on Monday that the latest round of COVID-19 tests had produced four new positives.

There were 2,131 players and club staff tested between Sept. 7-Sept. 13, a Premier League statement said.

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The previous week's tests had produced three positives from 1,605 tests. The identity of those testing positive was not announced, but they will now have to self-isolate for 10 days.

The Premier League kicked off at the weekend without fans in stadiums and under strict health protocols owing to the coronavirus pandemic.