ALLEN PARK, Mich. — The Detroit Lions added two coaches to Matt Patricia's staff.

The Lions hired Hank Fraley on Friday to be their assistant offensive line coach and Evan Rothstein to assist with research and analysis.

Fraley was UCLA's offensive line coach last season after three years with the Minnesota Vikings as their assistant offensive line coach.

Rothstein has been with the Lions since 2012, working as a research and analysis assistant the previous three years.

The Lions hired Patricia earlier this month to replace Jim Caldwell, who they fired last month. Patricia was on the New England Patriots' staff for 14 seasons, the last six as defensive co-ordinator.

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