Nadal defeats Federer in Cape Town... but it's just a game of Simon Says

Rafael Nadal drew first blood against Roger Federer on Friday ahead of their charity match-up in Cape Town ... but it had nothing to do with tennis.

Nadal tricked Federer into a schoolboy error during a game of Simon Says with about 50 pre-school children from Hout Bay at the Green Point Athletics Stadium.

"I hope I play better tennis," said Federer.

There was more laughter when the tennis stars were asked to read the Hangberg Pre-Primary children a story and Nadal's heavy Spanish accent had his rival in hysterics.

Federer and Nadal left the children for a practice session ahead of their “Match in Africa” in front of a world-record crowd of 50,000 at Cape Town Stadium.

Security was at levels first seen for Soccer World Cup matches at Cape Town Stadium in 2010. A lengthy list of banned items and activities posted on the Match in Africa Twitter account included “braais and open fires”.

Spectators were warned: “These items may be confiscated by security and will not be returned.

“Due to the high-profile nature of this event, all persons entering the stadium will be subject to a pat-down search as well as a hand-held magnetometer search for any of the prohibited items.”

Traffic began to back up in Cape Town city centre from noon on Friday when roads around the stadium began to be closed and the “fan walk” opened.

The Match in Africa was being staged to raise money for the Roger Federer Foundation, which supports education projects in Africa and Switzerland.

It runs school readiness programmes in SA and five other countries in Southern Africa, and has invested more than R780m by supporting 7,000 schools in the last 16 years.

After arriving in Cape Town on Wednesday, Federer began Friday with a trip to the Bo-Kaap in central Cape Town.

Nadal joined him for a photo shoot on the Grand Parade, where the stars mingled with surprised Capetonians and had pictures taken with family members.

Federer was joined by his mother Lynette, who was born in Johannesburg, and father Robert. Nadal was joined by his father, Sebastián.

Federer's wife, Mirka, with whom he has 10-year-old twin daughters and five-year-old twin boys, was seen at the 'learning through play" session, and is expected to attend a Federer family gathering on Saturday.

The stadium gates were due to open at 4.30pm on Friday for the arrival of a crowd which is expected to set a new record for a tennis match.

The main event gets under way at 7.30pm with a half-hour doubles match featuring Federer and Microsoft founder Bill Gates against Nadal and comedian Trevor Noah.

After a break for entertainment by the Ndlovu Youth Choir and the Zip Zap Circus, the singles match between Federer and Nadal will start at 8.30pm. 

Editor's note: This article has been amended to make clear that Federer and Nadal were playing Simon Says with the children, not Simple Simon