Southampton travel to Pride Park to take on Derby County this afternoon with the winner progressing to the FA Cup Fourth-Round.
The tie could see an opportunity for fringe players from both sides to play but it may still prove to be an intriguing contest.
Saints are struggling in the Premier League but have been boosted by the appointment of Ralph Hasenhuttl, whilst Frank Lampard has guided Derby to another promotion push despite inconsistent form at times.
Whilst Saints will be without a key player in Pierre-Emile Hojbjerg, the hosts will be without their top scorer in Harry Wilson who has scored a number of spectacular goals in the Championship this season.
Here are three other Derby players who need to be closely guarded this afternoon: