London Scottish played Blackheath at Richmond Athletic Ground on May 3, to commemorate those who fell in the 1914-18 World War.
More than 100 players took part and each commemorative shirt bore the name of a fallen member on the sleeve.
Our friends at WolfstockFilms captured the day on camera which can be viewed below.
Of 87 home international players killed in WW1, 31 played for one or both of these clubs, including the first three to be killed in a few days in September 1914.