By Sam Laskaris Writer Four players that suited up for the Six Nations Arrows this season are now a step closer to realizing their professional dreams. That’s because they were selected on Sunday in the National Lacrosse League (NLL) Entry Draft. Arrows’ goaltender Ethan Robertson was picked in the fourth round, 44th over-all, by the Colorado Mammoth. And Six Nations’ defender Louis Alfred was chosen in the fifth round, 67th over-all, by the Halifax Thunderbirds. Meanwhile, two individuals who spent the majority of the season in the Junior B ranks with the Akwesasne Thunder but joined the Arrows as affiliate players late in their campaign were also drafted. They were forward Landen Sinfield and defender Vance Adams. Sinfield was scooped up by the Toronto Rock in the fourth round, 47th…