Gemma Ball, 20, needed internal stitches to the flesh in her face after a man pulled a blade on her when she caught him in the back garden of her home in Stoke-on-Trent, Staffordshire.
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East Midlands weather: Sunny spells but cloudy with rain at times later.
West Midlands weather: Some rain today, but showers clearing.
Police are appealing for witnesses after an elderly woman was attacked in her own home on Thursday.