By Sam Laskaris Writer That time of the year that all athletes live to play for has arrived for the Six Nations Rivermen. Yes, the playoffs are here. The local Senior B men’s lacrosse squad played its final regular season contest of its 2023 campaign this past Friday. The Rivermen were downed 11-9 in overtime by the visiting Brooklin Merchants in a match staged at the Six Nations Sports and Cultural Memorial Centre. Six Nations ended up with an 8-6-2 record, presumably good for fourth place in the standings of its six-team Ontario Series Lacrosse (OSL) loop. We say presumably because ever since the OSL regular season concluded on the weekend, a lot has been going on behind the scenes. None of the four OSL playoff-bound clubs had announced their…