Forward Watt, a summer signing from Arsenal, missed last Saturday's 1-0 victory at Gillingham due to aleg injury but returned as a second-half substitute in Tuesday's 5-1 Capital One Cup defeat to Peterborough.
Otherwise, manager Joe Dunne has a fully-fit squad for Vale's visit.
Freddie Sears was dropped to the bench in midweek while Marcus Bean (virus) and Gavin Massey were rested altogether, and it remains to be seen how Dunne will line up as the U's look for back-to-back league wins.
- Sports & Recreation
- Gavin Massey
- Joe Dunne