The 26-year-old joined the Champions League club on a four-year deal.
The transfer is a departure from Leipzig's transfer strategy of signing only players up to the age of 24.
According to an ESPNFC report on Thursday, Kampl was previously linked with a transfer to Beijing Guoan earlier this summer, but the transfer did not materialise.
Kampl played in 53 Bundesliga games for Leverkusen, and a further 14 during his six months at Borussia Dortmund.
(This story has not been edited by Social News XYZ staff and is auto-generated from a syndicated feed.)
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Doraiah Chowdary Vundavally is a Software engineer at VTech . He is the news editor of SocialNews.XYZ and Freelance writer-contributes Telugu and English Columns on Films, Politics, and Gossips. He is the primary contributor for South Cinema Section of SocialNews.XYZ. His mission is to help to develop SocialNews.XYZ into a News website that has no bias or judgement towards any.