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IndyCar rookie Jack Hawksworth returns after nasty Pocono crash

  • IndyCar driver Jack Hawksworth stands in the garage area near his car, Thursday, July 10, 2014, at Iowa Speedway in Newton, Iowa. Hawksworth suffered a practice crash at Pocono last Saturday that was so severe he wound up in the hospital with a bruised heart but has since been cleared to run in Saturday night's race in Iowa. (AP Photo/Charlie Neibergall)

    IndyCar driver Jack Hawksworth stands in the garage area near his car, Thursday, July 10, 2014, at Iowa Speedway in Newton, Iowa. Hawksworth suffered a practice crash at Pocono last Saturday that was so severe he wound up in the hospital with a bruised heart but has since been cleared to run in Saturday night's race in Iowa. (AP Photo/Charlie Neibergall)  (The Associated Press)

  • IndyCar driver Jack Hawksworth speaks during an interview, Thursday, July 10, 2014, at Iowa Speedway in Newton, Iowa. Hawksworth suffered a practice crash at Pocono last Saturday that was so severe he wound up in the hospital with a bruised heart but has since been cleared to run in Saturday night's race in Iowa. (AP Photo/Charlie Neibergall)

    IndyCar driver Jack Hawksworth speaks during an interview, Thursday, July 10, 2014, at Iowa Speedway in Newton, Iowa. Hawksworth suffered a practice crash at Pocono last Saturday that was so severe he wound up in the hospital with a bruised heart but has since been cleared to run in Saturday night's race in Iowa. (AP Photo/Charlie Neibergall)  (The Associated Press)

Jack Hawksworth hit the wall at Pocono so hard that he hurt his heart.

Hawksworth hopes the wreck won't halt the momentum of his promising rookie season in IndyCar.

Hawksworth arrived for pre-race preparations at Iowa Speedway on Thursday, just four days after being released from the hospital. Hawksworth missed last weekend's race at Pocono Raceway after a nasty crash during a practice run.

The 23-year-old native of England was diagnosed with a myocardial contusion — more commonly known as a bruised heart — but he's since been cleared to run on Saturday.