The 24 - year - old , who won 400m gold earlier in 2013 at the European Indoor Championships , underwent knee surgery a week later .
While her rehabilitation is going well , coach Chris Zah admits she may have run her last race over the hurdles .
The 24 - year - old , who won 400m gold earlier in 2013 at the European Indoor Championships , underwent knee surgery a week later and while her rehabilitation is going well , coach Chris Zah admits she may have run her last race over the hurdles .