YELLOWJACKETS WIN PRO TITLE Tie Game of Frankford With Pottsville Assures Victory. PHILADELPHIA, Dec. 20.-Philadelphia's Yellowjackets won their first National Professional league football championship today, although they were held to a scoreless tie by the Pottsville Maroons at the Frankford Stadium. It was too cold for both the 7,000 persons who saw the game and the players participated in it. Both clubs were forced into a punting duel between Hamer of the Yeltowjackets and Jess Brown, of the Maroons, with neither having a noticeable advantage except when one had the stiff northwest breeze to his back. Philadelphia had the only real chance to score. Both came in quick succession in the first half. Once with the ball on Pottsville's 3-yard line, à penalty for holding ruined the Jackets' hopes for a touchdown. Hamer then tried 2 placement field goal, but it went wide of the uprights.