Zola, who struck two goals inside the first half an hour in the Brewers' 3-2 win at Valley Parade, was replaced by Billy Kee in the 67th minute and his fitness will be monitored.
Zola returned to the starting line-up as a lone striker and manager Gary Rowett could be tempted to recall Kee, Matthew Paterson or Michael Symes alongside him for the home leg.
Rowett has no other new selection worries, but is still without midfield pair Lee Bell, who sits out the third game of his four-match ban, and Jack Dyer (ankle ligaments).
Midfielder Adam Drury, on loan from Manchester City, and defender Aaron Webster are both in contention to return.
- Sports & Recreation
- Billy Kee
- Gary Rowett
- Matthew Paterson