They are super important in a sport like running, where improper foot and knee alignment can mean the difference between smiling at the finish line of a marathon and heading into the ER for knee surgery.

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Also consider the flared trumpet-skirt silhouette, which is sassier than an A-line and falls between your lower knee and mid-calf.

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Jagielka's return to the Everton starting line-up after a serious knee had coincided with a six-game unbeaten run, and his side, fresh from 10 days' rest, looked the form team in the opening exchanges.

BBC: Aston Villa 2-2 Everton

The duo were making their comebacks from injuries, with Richards absent from the City line-up since February because of a knee injury and Onuoha missing since April with a shoulder problem.

BBC: EB Streymur 0-2 Man City

Accies' top scorer Mickael Antoine-Curier made his team's starting line-up, despite concerns that a knee injury might preclude his participation, and had he not strayed offside an equaliser might well have resulted.

BBC: Rangers 1-0 Hamilton

Hamilton took control of the early exchanges, with the hosts - minus injured Jack Ross - grateful to have defenders Lee Mair and John Potter in the line-up following recovery from their respective knee and groin problems.

BBC: Alex Neil (r) and Steven Thomson in action at St Mirren Park

Redknapp restored Jonathan Woodgate to his starting line-up, but lost captain Ledley King because of his long-standing knee injury.

BBC: Arsenal 4-4 Tottenham

A. Happ (skull fracture, knee) is still sidelined because of the knee injury he sustained when he fell to the turf after being hit in the head by a line drive and is not near pitching again.

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Consequently Forest started the brighter, having made eight changes to their starting line-up, including the return of skipper Paul McKenna who had been out with a knee injury since early March.

BBC: Sport - Football - Blackpool 2-1 Nottm Forest