German Bundesliga side Kaiserslautern announced on Sunday that they have signed highly-regarded Poland Under-20 international Jakub Swierczok from Polish second division outfit Polonia Bytom. The 19-year-old signed a three-and-a-half year contract with Kaiserslautern, who are third from bottom of the Bundesliga and have scored just 13 goals, the fewest in the league. \"He is a talented player and we are convinced he has the potential to make it in the Bundesliga,\" said club president Stefan Kuntz.