Roberts, Howkins, Campbell and Ward all feature
ALBION loanee Tyler Roberts again stepped off the bench to help Oxford United record their first victory back in League One.
The youngster was a 68th-minute substitute in a last-gasp 2-1 win over Peterborough United as the U's, promoted from League Two last season, celebrated all three points.
It was Roberts' fifth loan outing of the 2016/17 season to date.
In League Two, centre-back Kyle Howkins completed 90 minutes as Mansfield Town suffered their first defeat of the campaign, going down 2-0 at Plymouth Argyle.
Striker Tahvon Campbell was a 64th-minute for Yeovil Town in their 1-0 home reverse to league leaders Morecambe.
Callam Jones, meanwhile, was an unused substitute for Accrington Stanley as they slipped to a 2-1 loss against Exeter City.
In the National League, newly-signed Joe Ward made his Torquay debut off the bench in the 79th minute as the Gulls slipped to a 1-0 defeat at North Ferriby United.
Ethan Ross, meanwhile, was an unused sub for Worcester City in their 1-1 draw against FC United of Manchester.