Namibian teenager Christine Mboma, who is unable to compete at certain events due to controversial rules over testosterone levels, continued her sparkling season with victory in the 200m on her Diamond League debut in Brussels on Friday.

Mboma's win in 21.84sec was the stand-out in a high-quality night of track and field in warm, still conditions at the King Baudouin Stadium in front of 28,000 raucous, unmasked, Covid-free spectators.