By Sam Laskaris Writer There could be even more Six Nations representation on the Toronto Rock this coming lacrosse season. That’s because the Rock, a professional squad that competes in the National Lacrosse League (NLL), inked Six Nations member Owen Hill to a one-year contract this past week. The Rock roster also includes Justin Martin of Six Nations. Martin, who was a rookie with the Toronto franchise last season, ended up being one of the NLL’s top newcomers a year ago. Despite signing a contract with the Rock, Hill is not guaranteed a spot with the NLL club. “Basically, they’re just giving me a shot,” he said. Hill still has to go out and earn himself a position in the team’s lineup. His first opportunity to impress Rock officials will…