The Clarets will play the first leg in Turkey on Thursday night.
"We're a little bit limited and we'll have a few decisions to make," Dyche told a press conference.
"Chris (Wood) has an infection from a bite that has caused a reaction. Steven (Defour) is behind Robbie (Brady) at the moment, so we're down to 17 players.
"But Joe (Hart) and Ben (Gibson) have travelled for a reason - to be included if needed."