The RFL says that, of the 589 tests on players, match officials and other relevant staff since the start of the week, there were 10 positive results spread across five clubs.
The governing body do not reveal the identity of the players or their clubs but Castleford and Wigan both confirmed positive results for three of their players earlier in the week and on Thursday both Hull FC and Wakefield announced positive tests for one player each.
Castleford suggested they would not be able to play their match against Leeds on Thursday night after being left with just 14 players through injury and the knock-on effects of the coronavirus pandemic.
The Tigers, who stood down six others as a result of track and trace, offered to check on the fitness of three of their 11 injured players on the morning of the match in an effort to fulfil the fixture.
But Hull, who were without a fixture due to the withdrawal from the league of Toronto Wolfpack, agreed to replace them as Leeds’ opponents, despite being without 13 players themselves.
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