Future sporting stars have joined the fight to save the Crystal Palace National Sports Centre over fears they will be left with nowhere to train.

Triathlete Alex Yee, 16, and diver Annabel Triggs, 13, have criticised the Greater London Authority’s (GLA) proposals to redevelop and downsize the centre’s sports facilities.

The GLA has proposed to make extensive changes to the 1964 Grade II listed building after claiming the venue is underused and in poor condition.

The indoor 100m track would be permanently removed and the swimming pool modified, which divers say would make it too shallow for them to use.

Annabel, from Kenley, who holds the bronze medal for the National Age Group three-metre springboard event, fears she will have nowhere to train if the pool alterations go ahead.

She said: "The 2012 London Olympics were fantastic and did inspire me and many of my generation, but two years later, this development threatens to take away the facilities young athletes have available in South London, and close successful and long standing sports clubs.

"Is that really the Olympic legacy for us?"

The athletics track and stadium could also be demolished to make way for a free school or college, under the proposals.

South of England 3,000m running champion Alex, from Crystal Palace, uses the centre for his triathlon training every week.

He said: "Crystal Palace Sports Centre is vital to my training as a triathlete. It is essential that I have access to a facility where I can safely train.

"Crystal Palace was where I was first introduced to triathlon."

Alex, a regular park-runner who holds the UK record for the fastest under-17s 5km run, is also in the Triathlon England Talent Squad.

A public consultation into the centre's future closed on November 16.

A London Mayor spokesman said: "This consultation has been an opportunity for local people and interested parties to voice their opinions, and understand more about the challenges facing the site.

"No final decisions have been made at this stage and we will now be evaluating the responses to the consultation to shape the development of a more detailed final proposal."