Oklahoma football: Former OU TE Grant Calcaterra transferring to SMU
Grant Calcaterra - Football - SMU Athletics
How Grant Calcaterra reached brink of NFL draft dream after retiring
Grant Calcaterra retires: Oklahoma tight end had concussion history - Sports Illustrated
Eagles' Grant Calcaterra believes his career-threatening concussion problem is behind him, but that's far from clear
How does Grant Calcaterra fit in SMU's offense? - Underdog Dynasty
Życzenia Wielkanocne! - Betty House
SMU tight end Grant Calcaterra nearly quit football to become a firefighter
Tulsa World Nov. 19, 2017 edition by Tulsa World - Issuu
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Grant Calcaterra - Football - SMU Athletics
Concussions prompt Oklahoma TE Grant Calcaterra to retire - ESPN