BadgerExtra reporter Colten Bartholomew and columnist Jim Polzin give against-the-spread picks for a fun Week 4 in the Big Ten. Can Wisconsin cover -6 at Purdue? Hear what they think.

Colten was 7-5 last week and is 13-18 on the year, while Jim went 6-6 last week and is 12-19 on the year. 

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