Swansea City forwards Viktor Gyokeres and Jordon Garrick have returned positive Covid-19 tests.
Striker Gyokeres, 22, and winger Garrick, also 22, are self-isolating.
Gyokeres tested positive while away with Sweden Under-21s, while Garrick was tested at Swansea’s training base.
Gyokeres, who is on loan from Premier League Brighton, remains in Sweden, while Swansea say Garrick is “following healthcare guidelines”.
Gyokeres would probably have been in line to start Swansea’s Championship game against Rotherham United on Saturday in the absence of Andre Ayew, who picked up a minor muscle injury while on international duty with Ghana.
Gyokeres has played seven times for Swansea – but made only two starts – since arriving at the start of October.
Garrick has made just one substitute appearance this season, but showed his potential during the 2019-20 campaign.
“Viktor and Jordon have tested positive for the virus,” boss Steve Cooper said after the match.
“They’re fine and there’s no symptoms. Viktor’s been on international duty with Sweden’s Under-21s, Jordon’s been in and around here.
“Both have to follow the protocols of doing the self isolation and will come back after that. But they’re both fine.
“Viktor was away on international duty, so there’s not much we can do about that.”
Cooper says the club have taken all precautions to avoid further outbreaks.
“It’s something we’re getting used to hearing, players testing positive,” he added.
“With Jordon, you don’t know where he picked the virus up. It could be anywhere.
“We social distance as much as we can at the training ground. When I meet with the players, everyone’s got a mask on. We follow the red zone processes here at the stadium, we travel on two buses, like every other team will be doing their best to keep the virus away from the team, not just to keep players available for games, but to stay healthy.
“I’m sure we’ll play a team in the future that is missing players through the virus as well.”