The indoor Edmonton Drillers will act as a proving ground for some FC Edmonton prospects. Antonio Rago, a former member of the Vancouver Whitecaps residency, and 16-year-old keeper Matt Preston were in the lineup for the Drillers’ indoor season-opening 7-6 loss in Calgary on New Year’s Eve. “Preston’s a player who has got a bright future,” said FC Edmonton general manager Mel Kowalchuk. The Canadian Major Indoor Soccer League (CMISL) is an amateur circuit, so no player with a professional contract with FC Edmonton, which kicks off its inaugural NASL season in April, is eligible to play with the Drillers. But Rago and Preston currently retain their amateur status, so they can play in the indoor circuit.