 In a 1937 World Cup qualifier against Estonia, with Germany one goal behind at half-time, Germany collected 18 corner kicks in the second half, two of which Lehner converted directly and two other corners of his were headed into the Estonian goal by Jupp Gauchel (Germany won 4-1).Lehner was considered to have been one of the best outside rights of the 1934 World Cup.Others touted him as "the best non-professional player in Europe" (professionalism was not allowed in Germany in the 1930s).