Hendriks is the son of Dutch immigrants. He attended Trinity College, Perth. Hendriks made his senior debut for West Perth at the age of 16 years 195 days, at the time making the ninth-youngest player to played a senior WAFL game. He became the second-youngest ever West Perth player ever, and one of only four to play for the team at the age of 16. After breaking into the team in the final round of the 1975 season, Hendriks held his place in West Perth's line-up for the second semi-final against Swan Districts. He did enough to win selection for the grand final team, and helped his side to a record-breaking 104-point win against South Fremantle in front of a crowd of 52,322 fans. Hendriks became the first 16-year-old to win a WAFL premiership, and remains the youngest ever. Stephen Coniglio, who won a medal with Swan Districts in 2010, is the only player to come close to this record. In the early rounds of the 1977 season, Hendriks was pushed into the forward linefor the first time by coach Graham Campbell, and responded by kicking 22 goals in five games including nine against Claremont in round six. In the 18 games before that he had never kicked a goal. His form eventually tapered off and he was moved back to other positions, although he did return to the forward line briefly at other times. His next-best haul was six goals against East Fremantle in round five 1978, but other than that he never again kicked more than three goals in a game. According to the WA Football Budget of June 12, 1982, "over the years Hendriks has been used in a variety of positions, including ruck rover or half-forward, but it is clear he is best suited to defence". By the time of his retirement after the 1985 season, Hendriks had played 169 senior games for West Perth and kicked 112 goals. This included two games in the NFL Night Series in 1977–78 and five in the AFC Night Series in 1979–81, against interstate teams like North Adelaide, Glenelg, South Melbourne, Hawthorn, and North Melbourne. Hendriks and West Perth never played in another grand final after his debut year, but he did play in losing preliminary finals in 1977 and 1982. Several of his seasons were affected by injuries of various types. He was unlucky to miss out on selection for Western Australia – if state of origin rules had not been adopted he probably would've played at least a couple games for the state. After retiring from football Hendriks became the principal of St Patrick's Catholic School Katanning and later Sacred Heart Thornlie. He is currently Director of Business at BindoonAgricultural College Bindoon. He has also worked as a WA talent scout for Sydney Swans.
