The deal is widely reported to be a one-year, two-way contract worth US$575,000.
Los Angeles, which hosted the 1932 and 1984 Olympics, is viewed as the likely replacement for Boston's failed bid because the city's many existing venues could help keep costs low.
The first-ever Canadian tournament on the men's World Rugby Sevens Series is still half a year away, but Liam Middleton can already see its benefits.
Didier Drogba's toe injury snuffed out the opportunity to face a legend, but the Vancouver Whitecaps still have a chance to make history in Wednesday's second leg of the Amway Canadian Championship final.
Spencer, a Vancouver native, was part of the group that gained approval for the Lions to begin operations in 1953 and got the franchise up and running the following season at Empire Stadium
The Russian Hockey Federation was fined Monday over the national team snubbing Canada's victory celebrations after the world championship final.