| Klaus | |
| Fullname: | Willian Klaus |
| Birth Date: | 11 January 1994 |
| Birth Place: | Dois Irmãos, Brazil |
| Currentclub: | RWDM |
| Clubnumber: | 4 |
| Position: | Centre-back |
| Youthclubs1: | Grêmio |
| Youthclubs2: | Internacional |
| Youthclubs3: | Juventude |
| Years1: | 2013–2017 |
| Clubs1: | Juventude |
| Caps1: | 32 |
| Goals1: | 1 |
| Years2: | 2017 |
| Clubs2: | → Internacional (loan) |
| Caps2: | 19 |
| Goals2: | 4 |
| Years3: | 2018–2019 |
| Clubs3: | Internacional |
| Caps3: | 27 |
| Goals3: | 1 |
| Years4: | 2020–2021 |
| Clubs4: | Ceará |
| Caps4: | 39 |
| Goals4: | 5 |
| Years5: | 2022 |
| Clubs5: | Botafogo |
| Caps5: | 3 |
| Goals5: | 0 |
| Years6: | 2022 |
| Clubs6: | → Atlético Goianiense (loan) |
| Caps6: | 13 |
| Goals6: | 0 |
| Years7: | 2023– |
| Clubs7: | RWDM |
| Caps7: | 16 |
| Goals7: | 0 |
| Club-Update: | 28 March 2024 |
Willian Klaus (born 11 January 1994), commonly known as Klaus, is a Brazilian professional footballer who plays as a centre-back for Belgian Pro League club RWDM.
Born in Dois Irmãos, Rio Grande do Sul, Klaus represented Grêmio, Internacional and Juventude as a youth.[1] He made his senior debut with the latter on 12 March 2015, starting in a 0–1 Campeonato Gaúcho away loss against União Frederiquense.[2]
Klaus became a regular starter during the 2016 campaign, as his side achieved promotion from the Série C and reached the quarterfinals of the Copa do Brasil. His first senior goal came on 21 April of that year, the second in a 2–0 home win against former club Grêmio.[3]
On 19 January 2017, Klaus joined Internacional, recently relegated to Série B.[4]
| Club | Season | League | State League | Cup | Continental | Other | Total | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Division | Apps | Goals | Apps | Goals | Apps | Goals | Apps | Goals | Apps | Goals | Apps | Goals | |||
| Juventude | 2015 | Série C | 0 | 0 | 1 | 0 | — | — | 5[5] | 0 | 6 | 0 | |||
| 2016 | 10 | 0 | 13 | 1 | 8 | 0 | — | — | 31 | 1 | |||||
| Total | 10 | 0 | 14 | 1 | 8 | 0 | — | 5 | 0 | 37 | 1 | ||||
| Internacional | 2017 | Série B | 14 | 4 | 2 | 0 | 1 | 0 | — | 2[6] | 0 | 19 | 4 | ||
| 2018 | Série A | 6 | 0 | 5 | 0 | 4 | 0 | — | — | 15 | 0 | ||||
| 2019 | 10 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | — | 12 | 0 | ||||
| Total | 30 | 4 | 9 | 0 | 5 | 0 | 0 | 0 | 2 | 0 | 46 | 4 | |||
| Ceará | 2020 | Série A | 12 | 0 | 3 | 1 | 2 | 0 | — | 8[7] | 3 | 25 | 4 | ||
| 2021 | 2 | 0 | 2 | 1 | 2 | 0 | 1[8] | 0 | 4 | 0 | 11 | 1 | |||
| Total | 14 | 0 | 5 | 2 | 4 | 0 | 1 | 0 | 12 | 3 | 36 | 5 | |||
| Career total | 54 | 4 | 28 | 3 | 17 | 0 | 1 | 0 | 19 | 3 | 119 | 10 | |||
Ceará