Doha: Shelly-Ann Fraser Pryce, 32, held her son Zyon proudly in her arms as she celebrated winning her fourth world 100 metres title but confessed coming back after his birth had been a long journey both mentally and physically.

The Jamaican sprint legend — who also has two Olympic 100m titles — had been written off by some when she became pregnant and then launched a comeback last year a few months after giving birth.