Boro haven’t won for three matches but did produce an improved performance against league leaders Norwich last weekend.
The Teessiders have also been boosted by a successful transfer deadline day which saw them bring in former Cardiff winger Nathaniel Mendez-Laing and Neeskens Kebano on loan from Fulham.
Warnock has admitted Mendez-Laing will take a while to get up to speed as he hasn’t played a competitive match for months.
Boro defender Dael Fry is also a doubt after suffering a calf issue against Norwich last weekend, meaning centre-back Grant Hall may receive a chance to return following his injury setback.
Anfernee Dijksteel is also back in training after a couple of games out.
So scroll down and click through the pages to see who could start for Boro against Brentford this weekend:
1. GK: Marcus Bettinelli
Has now kept ten clean sheets for Boro this season after the shutout against Norwich last time out. Photo: Alex Pantling
2. RB: Darnell Fisher
Has competition for the right-back position with Anfernee Dijksteel back in training. Was excellent on his debut at Norwich last week. Photo: Stephen Pond
3. CB: Paddy McNair
Has played every minute of every league game this season and continues to impress at the back. Photo: Alex Pantling
4. CB: Grant Hall
Has impressed Warnock in training this week and may be called upon if Dael Fry isn't available. If he doesn't play on Saturday, the centre-back will play for the under-23 side on Sunday as he continues to build up his fitness. Photo: PA