Sydney Sweeney showed off a shock physical transformation, who left fans stunned with her… See more

Sydney Sweeney showed off a shock physical transformation to play boxer Christy Martin in an upcoming biopic as filming began in North Carolina on Sunday.

The Euphoria actress, 27, who left fans stunned with her new look on set, appeared to have her famous bust taped back as she sported a baggy tee and grey shorts while walking to set.

The star – known for her blonde bombshell look and famed curves – completed the transformation with a curly brown wig and white and grey sneakers.

She wore minimal make-up as she chatted with the crew members while keeping her enviable curves under wraps.

Sweeney earlier covered up her famed curves in a brown shirt, blue hoodie and joggers on set.