Hang on

Mumbai Indians have brought out their best yet again to register their 6th win in 7 games. They kept losing wickets at regular intervals but Tiwary and Sathish held their nerve to pull of a thriller. Punjab had their chances but couldn't hang on as they crash to yet another defeat. Moody and co must be wondering what they can do from here on to win. Stay connected, the presentation will happen very shortly...

Please explain to me what "hang on" means here.