Sentence Correction (SC) | Re: He was less successful after he had signed with the washington bullets

HelloVeritasPrepKarishma GMATNinja and other experts,

Hope you are doing good
1) Can you explain the redundancy when we use "although" and "nevertheless" together in one sentence? I didn't get the usage or meaning here. (I do know that Option C has a comparison error. I just want to know the redundancy )

2) I think we need ' , ' (comma) between "new york knicks"
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