5 Live In Short - Gebrselassie: Sub-two-hour marathon possible in 'five years' - BBC Sounds

5 Live In Short - Gebrselassie: Sub-two-hour marathon possible in 'five years' - BBC Sounds
Gebrselassie: Sub-two-hour marathon possible in 'five years'
He believes advancements in shoe technology will allow elite athletes to beat the record.