Good Afternoon

I am hoping for guidance on the following fact pattern:

FACTS:
401(k)participant recv’d two checks (made payable to him) (1) pre-tax and (2) aftertax (basis only)from his former employer.

Question
I know he can rollover the pre-tax dollars (check)#1 into a T-IRA.
Is he permitted to faciliate an indirect(60-day)rollover of the aftertax dollars (check #2) into a Roth IRA?

Thank you!