Background
Grosenick was born and raised in the Waukesha suburb of Brookfield, Wisconsin, where he attended Brookfield East High School and graduated in 2007.
Grosenick was born and raised in the Waukesha suburb of Brookfield, Wisconsin, where he attended Brookfield East High School and graduated in 2007.
He then went on to play with Team Illinois" Midget Major team for a year, and eventually ended up playing for the Cedar Rapids RoughRiders for two years before heading off to play for Union College in New New York Grosenick played for the Union Dutchmen in the National Collegiate Athletic Association Men"s Division I ECAC Hockey conference. On April 8, 2013, following his third year at Union, Grosenick signed a one-year entry-level contract with the San Jose Sharks.
On November 12, 2014, Grosenick was called up after goalie Alex Stalock was placed on injured reserve.
He made his National Hockey League debut on November 16, 2014 against the Carolina Hurricanes where he went on to record a 45-save 2–0 shutout, becoming the 22nd goalie to record a shutout in their debut, and at the same time setting a record for most saves in a shutout debut in the modern era. Grosenick was recalled once more on January 3, 2016 when Alex Stalock was sent down to the Sharks" AHL affiliate, the San Jose Barracuda, on a conditioning assignment.