Hotshot prospects Morgan Frost, Isaac Ratcliffe, and Joel Farabee are getting most of the attention at the Flyers’ rookie camp. All are gifted and will contend for spots with the Flyers when the main camp opens Friday, and each player was dominant in Sunday’s five-on-five scrimmage in Voorhees.

But don’t overlook German Rubtsov, another prospect who is lurking and is also a candidate for the Flyers’ third-line right-winger spot.

Rubtsov, now 21, was the Flyers’ No. 1 pick (22nd overall) in the 2016 draft, and he was making great strides in his first pro season last year. He collected six goals and 10 points before suffering a season-ending shoulder injury in his 14th game with the AHL’s Lehigh Valley Phantoms.

Checked hard into the boards early in a win over Providence, Rubstov eventually underwent shoulder surgery and started a long rehab. He stayed in the area after development camp in June and showed his commitment by working out and skating at the Flyers’ practice facility during the summer.