Dee ihe na-esote paragraf a - Lehmann gbara bọọlụ AIK na Swedish Elitserien maka oge ise site na 1982 ruo 1987. Ndị Boston Bruins nke National Hockey League họpụtara ya na 1982 NHL Entry Draft
, ọ sonyeere Boston maka oge 1987/88, wee kpọọ egwuregwu itoolu n'oge ahụ, na egwuregwu 26 ọzọ na oge na-esote, na-etinye ọtụtụ n'ime afọ abụọ ahụ na-egwu maka Bruins 'American Hockey League affiliate Maine Mariners. A gbanwere ya na Edmonton Oilers tupu oge 1989/90, mana ọ gbara naanị otu egwuregwu maka klọb ahụ. Lehmann gbara bọọlụ n'egwuregwu oge oge 19 na egwuregwu 6 nke playoff maka Cape Breton Oilers tupu ọ laghachi Sweden. Lehmann gbara afọ asaa ọzọ na Elitserien, ọkachasị maka AIK, kamakwa maka MODO maka otu oge, yana otu egwuregwu maka Södertälje na oge ikpeazụ ya, tupu ọ laa ezumike nká na 1997.