Vertigo sidelines Steve Smith from Third Ashes Test; Khawaja steps in

• Star batter Steve Smith ruled out of the third Ashes Test against England due to persistent vertigo symptoms.
• Cricket Australia confirmed Smith experienced nausea and dizziness, indicating a potential vestibular issue he's had intermittently.
• Captain Pat Cummins stated Smith tried to recover but couldn't, leading to Usman Khawaja replacing him at No. 4.
• Smith is expected to be available for the Boxing Day Test in Melbourne.
• Australia, leading the series 2-0, aims to seal the Ashes with a win in the ongoing third Test.

Why It Matters: Steve Smith misses the third Ashes Test due to vertigo; expected back for Boxing Day.