PETALING JAYA: Concern is growing over the injury situation of professional men’s singles shuttler Lee Zii Jia as the national squad step up preparations for the Thomas Cup in Horsens, Denmark from April 24-May 3.

Zii Jia was supposed to begin training with the national team at the Academy Badminton Malaysia (ABM) in Bukit Kiara yesterday, but there was no sign of him.