By Sam Laskaris Writer It took them a bit to get going. But the Six Nations Rivermen, the defending Ontario Series Lacrosse champions, were able to register a convincing win in their first match of 2023. The local Senior B lacrosse squad downed the visiting Clearview Crushers 15-6 in its season opener held this past Saturday at the Six Nations Sports and Cultural Memorial Centre. The Rivermen were unable to get onto the scoreboard and found themselves trailing 2-0 after the opening 20-minute period. Clearview also managed to score the first goal of the second period to go ahead 3-0. The Rivermen responded with four unanswered goals and then found themselves enjoying a 7-5 lead heading into the third period. Six Nations outscored the Crushers 8-1 in the final 20…