(Reuters) - Former players and coaches across sport have joined a campaign by British dementia charity Alzheimer's Society to tackle the stigma around the neurodegenerative disease and support people affected by the condition on World Alzheimer's Day on Tuesday.

The Sport United Against Dementia (SUAD) campaign aims to increase the awareness and capacity of its support services, and is backed by soccer greats such as Geoff Hurst and Denis Law as well as former cricketers Andrew Flintoff and Shane Warne.