Spain defender Diego Llorente has tested negative for Covid-19 and could rejoin training on Friday if further tests are negative.
Leeds’ Llorente and captain Sergio Busquets tested positive earlier this week.
This led to Spain’s Under-21 squad playing their friendly against Lithuania on Tuesday, winning 4-0.
Llorente tested negative on Wednesday, with Spain’s FA suggesting his first test may have been a false positive.
Spain will make a decision on Thursday evening about whether the squad will be vaccinated before their European Championship campaign.
Vaccinations will either take place on Friday or not at all – the decision will be based on potential side effects causing players problems before their Euro 2020 opener against Sweden on Monday.