Boris Johnson is inspecting the new spectator stand and changing rooms at Streatham-Croydon Rugby Club, which have been built following a grant from his sports legacy fund.
The fund helps local clubs across the capital build new or refurbish existing sports facilities. The Mayor is meeting local youngsters who are benefiting from the new facilities.
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Donald Trump is to visit the UK on July 13 and hold bilateral talks with Theresa May, Britain's ambassador to the US has said.
The Football Association has announced it has received an offer to buy Wembley Stadium.
The most hotly-tipped date is July 13, following the Nato summit which the president is due to attend in Brussels on the previous days.