French duo Nicolas Mahut and Pierre-Hugues Herbert plan to pay tribute to victims of the Paris attacks during the ATP World Tour Finals in London.
The end-of-season event gets under way on Sunday, with more than 500,000 spectators expected across eight days.
Security is under review but the same measures are in place as last year, when the venue was on high alert.
Jamie Murray opens play at the O2 Arena alongside doubles partner John Peers at 12:00 GMT on Sunday.
"It's obviously a terrible thing that's happened," said Murray.
"It's affected so many people and I guess there are a lot of shockwaves around the world that something like that can happen.