The intensity and physicality at Colorado Avalanche practice increased dramatically Wednesday, with the last two exhibition games looming and a few spots in the opening night lineup still up for grabs. Part of that was the Avs’ back-to-back poor performances in the previous preseason contests. But it’s also because time is running short for the guys on the fringe who are trying to make one final push for a spot before the official rosters are set Monday night. “It’s nice to still be here,” veteran forward Chris Wagner said.