Li Na benefiting from a punishing training regime ahead of the tennis season . World No . 6 beat fourth seed Agnieszka Holland to reach Australian Open semifinals . Last year Li began working with Carlos Rodriguez , former trainer of seven-time grand slam winner Justine Henin , after deciding to end her professional relationship with husband Jiang Shan . Chinese star will face Maria Sharapova , who beat compatriot Ekaterina Makarova 6 - 1 6 - 2 . Russian second seed has lost just nine games -- a record -- on way to the last four .
Li Na benefiting from a punishing training regime ahead of the tennis season . World No . 6 beat fourth seed Agnieszka Holland to reach Australian Open semifinals . Chinese star will face Maria Sharapova , who beat compatriot Ekaterina Makarova 6 - 1 6 - 2 . Russian second seed has lost just nine games -- a record -- on way to the last four .