The NHL said four members of the Golden Knights, including three coaches, are being isolated under the protocol. Vegas' facilities are closed until further notice.
The Golden Knights' scheduled home game against the St. Louis Blues was postponed Thursday.
Vegas was without its coaching staff
for a 5-4 shootout loss to the Blues on Tuesday due to protocol. The usual Vegas staff is coach Peter DeBoer; assistants Ryan Craig, Ryan McGill and Steve Spott; goaltending coach Mike Rosati; and video coach Tommy Cruz.
Vegas general manager Kelly McCrimmon coached that game, assisted by the staff of Henderson of the American Hockey League.
On Thursday, Vegas defenseman Alex Pietrangelo and an additional member of the Golden Knights coaching staff entered NHL COVID-19 protocol.
The games postponed for Monday and Wednesday will be rescheduled and take place at SAP Center in San Jose.
The Sharks have been playing road games since opening the NHL season Jan. 14, due to COVID-19 restrictions in Santa Clara County, California, but were to be the home team in the games against the Golden Knights in Glendale. San Jose is scheduled to play its first games at SAP Center on Feb. 13 and Feb. 15 against the Anaheim Ducks.
Nine games have been postponed since the NHL season began, with two others postponed prior to the start.