La Liga side Valencia confirmed Sunday that five positive cases of the coronavirus have been detected among members of the first team and staff.
"All of these persons are now at home, in good health and obeying self-isolation measures," Valencia said of the unnamed people in a statement.
Earlier in the day, Argentine center-back Ezequiel Garay announced on Instagram that he had contracted the virus, becoming the first La Liga player known to have been diagnosed.
Spain is the second-hardest hit among European nations behind Italy and is expected to declare a national lockdown on Monday. As of Sunday, the country had nearly 8,000 confirmed cases and 291 deaths.
"Valencia CF reiterate our confidence in the Spanish health system, and in the recommendations made by the Ministry of Health for cases of coronavirus infection such as these", the club statement adds.
Valencia last played on Tuesday in the Champions League against Italian side Atalanta at the Mestalla Stadium behind closed doors.