Häner made his debut for the German national team in 2005.[3] At the 2012 Summer Olympics, he competed for the national team in the men's tournament, where they won the gold medal and the 2016 Olympics where Germany won bronze.[4][5] On 28 May 2021, he was named in the squad for the 2021 EuroHockey Championship and the 2020 Summer Olympics.[6] He scored four goals in the tournament as they won the silver medal after they lost the final to the Netherlands after a shoot-out.[7] After the 2020 Summer Olympics he retired from playing hockey.[8]

Source Wikipedia

Martin represented East Grinstead during the 2008/2009 season in which East Grinstead men were crowned Premier League Champions - winning the national top-flight for the first time since winning the inter league playoff final during the 1980s.  Martin also played for East Girnstead Indoor in that season, which was the first in a run of 8 Indoor Premiership titles.

EGHC Honours

 

Mens England Hockey Indoor Premier League

2016, 2015, 2014,

2013, 2012, 2011,

2010, 2009, 2006,

1993, 1986

Mens England Hockey Premier League Champions

2010, 2009, 1983

Runners Up

2015, 2014, 2012, 2011, 1989

 

Women's England Hockey Indoor League

2016 Premier League Champions

2015 Premier League Runners Up

2013 National Division 1 Champions

2012 National Division 2 Champions

2011 National Division 2 South Champions

2010 South League Champions

 

Women's England Hockey League

2015 Conference East Champions

2014 Conference East Runners Up

2013 South Division 1 Winners

2012 South Division 2 Winners

2011 South Division 3 Winners

2010 Sussex Premier Division Winners