Graham is a former professional Australian rules footballer who tied Andy Lee's NFL record in 2009 by landing 42 punts inside the opponent's 20-yard line. Since debuting in 2005 with the New York Jets, Graham has punted 462 times with an average of 44.2 yards per punt.
Last season, Graham joined the Lions after punter Ryan Donahue went down with an injury in practice. In the final seven games of the season, he landed 10 punts inside the 20-yard line and averaged 44.1 yards per punt.
Donahue, who average 42.7 yards per punt as an undrafted free agent out of Iowa, will likely battle Graham for the right to play the position.