Overview
- The 19-year-old pulled out of the Adelaide ATP 250, a week after withdrawing from Brisbane with the same problem.
- Fonseca said an MRI indicated nothing very serious but warned it could worsen if he plays before he is fully ready.
- He described the problem as long-standing, noting a congenital back condition and a stress fracture suffered five years ago.
- He has not competed since losing to Karen Khachanov at the Paris Masters and will decide on Melbourne closer to the event.
- He sits around No. 30 in the live rankings and is set to be seeded at the Australian Open if he enters the draw.