Security was stepped up for the start of Wimbledon today amid heightened fears of a terror attack, as the first British player stormed into the second round of this year's championships.
Scotland Yard said changes had been made to policing plans for this year's tournament, with the UK's terror threat level at "severe" - meaning an attack is "highly likely".
Extra officers are on patrol - including some in plain clothes - and a "highly mobile" reserve unit is ready to respond to "emerging incidents", the force said.
It comes after up to 30 British holidaymakers were killed in the Tunisian beach massacre on Friday, and as the UK prepares to mark the 10th anniversary of the July 7 bombings next week.
Security staff searched bags of spectators entering the grounds today, with selfie-sticks among the list of banned items this year.
Liam Broady was the first Briton through to the second round after coming from two sets down to beat Australian Marinko Matosevic.
Afterwards, the 21-year-old wildcard, from Stockport, received a message of support from Andy Murray who tweeted: "Well done @liambroady. Big comeback win."
The tennis action on Centre Court kicked off today with defending champion Novak Djokovic sailing through his first round match, while 2013 champion Murray will begin his challenge tomorrow.
The Scot has been handed a tough draw as third seed, and may have to overcome former champions Rafael Nadal, Roger Federer and Djokovic if he is to achieve glory.
The British Association of Tennis Supporters have insisted Murray will have the full support of the Wimbledon crowd despite having voiced his support for Scottish independence in last year's referendum.