He was of Jewish ethnicity. In the 1920s he had played for Unirea Timişoara (appearing, whilst with them, at the 1924 Olympic Games) and Chinezul before moving on. His last matches for Romania (played while he was playing for Ripensia were in 1932.
His last match came in a 2-0 defeat to Bulgaria in Belgrade.
Otherwise he played for BSK Belgrade, Újpest Football Club, Hyères Football Club, ILSA Timişoara and Craiovan Craiova. While playing in Hungary, he used the name Rudolf Veder, in Serbia, Rudolf Večer.
This was Rădulescu"s decision in the weeks prior to the tournament. In May 1930 the Romanians had lost the King Alexander"s Cup (a two team event) to Yugoslavia in Belgrade.
At the time Emerich Vogl was team captain.
Wetzer was brought back into the side two weeks" later for a friendly against Greece in Bucharest. This decision reaped considerable rewards for both Rădulescu and Wetzer because Wetzer scored 5 goals in an 8-1 victory for his team Romania had been grouped with Uruguay and Peru in the tournament, defeating the Peruvians 3-1 before losing to the eventual winners and hosts 4-0.
The second of these games was held at the Estadio Centenario in Montevideo.
Wetzer was a very prolific scorer for Romania. They scored 7 goals each for their country in that tournament alone.
In total Wetzer was to play 17 times for Romania scoring 13 goals. After retiring as a football player Wetzer became a trainer.