New Stoke striker Saido Berahino was named as a substitute on his return to West Brom on Saturday.
The match followed confirmation on Friday that Berahino served a Football Association ban while with the Baggies.
The 23-year-old made a £12million switch to Stoke last month, having been suspended for eight weeks from October to December.
The Daily Mail reported this week that Berahino tested positive for a recreational drug during his time at The Hawthorns.
Both clubs confirmed he was banned, but stopped short of saying exactly why. The Football Association declined to comment.