General manager Ron Hextall has to make some interesting and difficult roster decisions before the Flyers board a plane to San Jose on Monday afternoon. The Flyers have 25 healthy players in camp and need to trim their roster to 23. They will open their season Wednesday in San Jose. Assuming Hextall keeps seven defensemen and 14 forwards — the goalies will be Michal Neuvirth and Brian Elliott — here are some of the questions the fourth-year GM faces: Does he keep six rookies? That would be a club record to start a season. The rookies still in camp: center Nolan Patrick; left wingers Oskar Lindblom and Taylor Leier; and defensemen Travis Sanheim, Sam Morin, and Robert Hagg. It appears Patrick will start the season as the No. 2 center, with Jordan Weal and Wayne Simmonds as his wingers. Patrick, the No. 2 overall pick in the June draft, has three assists and a plus-3 rating in his six exhibition games. Lindblom looked like a roster lock early in camp, but he has not played in two of the last three exhibition games. It seems he is headed for a spot on the third line, but the fact he hasn’t played much lately has opened a sliver of doubt about whether he will start the season in Philadelphia. Lindblom, who is waiver-exempt if the Flyers send him to the Phantoms, has a goal and an assist while playing in four preseason games.