The Green Bay Packers and kicker Mason Crosby on Tuesday agreed to a four-year contract extension worth up to $21.1 million over four years.

Crosby will receive $16.1 million over four years with a $5 million signing bonus, according to FOX Sports One insider Mike Garafolo.

The 31-year-old Crosby tied his career high in field-goal percentage this past season, making 85.7 percent of his attempts during the regular season. Crosby has been the Packers' kicker for the past nine seasons, making 236 of 296 (79.7 percent) of his regular-season field-goal attempts and 437 of 441 extra-point attempts.

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Crosby, a sixth-round draft pick in 2007, has made 23 of 25 playoff field-goal attempts and went four-for-four in two 2015 playoff games.