Marcelo Bielsa said the 3-2 defeat at Ipswich on Sunday was difficult to take but believes he can lift Leeds for the play-offs.
Collin Quaner's last-gasp strike earned 10-man Ipswich a morale-boosting 3-2 win over Leeds, who head into the play-offs in dire form.
Marcelo Bielsa has vented his frustration at the Football Association following his side's explosive Sky Bet Championship clash with Aston Villa last Sunday.
Bottom club Ipswich will check on forward Will Keane ahead of the visit of Leeds.
Goals from Scott Hogan and Jack O'Connell gave Sheffield United a 2-0 victory over Ipswich which leaves them on the brink of promotion to the Premier League.
Sheffield United boss Chris Wilder is confident striker Billy Sharp will be back in contention for his promotion-chasers against bottom club Ipswich.
Swansea boss Graham Potter hailed the performance of striker Daniel James as his team ended a barren run of away form with a 1-0 win against Ipswich.
Swansea ended their dismal away form with a 1-0 victory against already-relegated Ipswich at Portman Road.