Sunderland manager Gus Poyet will offer his resignation at season's end if his team 'give up' in their relegation fight.
A 2-1 loss to West Ham on Monday left Poyet's side four points adrift of safety but they hold a game in hand over 17th-placed West Bromwich Albion.
The Uruguayan was appointed at the Stadium of Light in October last year, signing a two-year contract.
Poyet, 46, said he would offer his resignation if he saw his side giving up late in the campaign as he urged them to fight for their place in the top flight.
"If my team give up, I'll leave. Nobody needs to sack me, I'll leave on my own, OK?" he told a news conference after Monday's loss.
"If you see this team giving up before the end of the season, you won't see me here."
Goals from Andy Carroll and Mohamed Diame set up West Ham's victory, and they held on despite substitute Adam Johnson pulling one back for the hosts on 65 minutes.
Poyet said he was hurt and sad about Sunderland's position but believes repeating their recent performances could help them survive.
"If we play like we play against Liverpool and today in the next eight games, we're going to have a great chance (of surviving)," he said.
"The crystal ball, I can tell you, is not in my house. I'm not going to try and read the future because I'm not very good at that.
"What I believe is that I need to convince the players to keep doing it and defend this club to the end, to the last minute – to try their best.
"If everybody does the same, who goes out? The three worst teams in the league."
The loss extended Sunderland's miserable runs in Premier League games on Mondays.
The club are winless in 19 league matches on Mondays, dating back to 2002, and have a trip to Tottenham next – again on Monday.
"Thank you to the TV for putting another game on Monday next week. Very nice," Poyet said with a laugh.
"Why they don't change the last seven and put it on Mondays as well?"
|Coach: G. Poyet|
for L. Cattermole 53'
for J. O'Shea 60'
for Sung-Yong Ki 79'
|Sweden U21 0 Portugal U21 0 (aet, 4-3 on penalties): Carlgren the hero as Swedes claim Euro glory|
|Frankfurt capture Castaignos|
|Bastia face relegation over debt|
|Bahlouli makes Monaco switch|
|Pearson sacked by Leicester|
|Rekik set for Marseille switch|
|Ranocchia and Carrizo sign new Inter deals|
|Crespo handed Modena role|
|Cech reveals work permit prevented past Arsenal move|
|Ivory Coast cut coaching shortlist down to five|
|McCarthy satisfied with Mings sale|
|Heaton commits to Burnley|
|Bowyer: Rhodes and Gestede will not come cheap|
|Burton and Day depart West Brom|
|Mendilibar makes Eibar return|
|Milan agree to terminate Muntari contract|
|Copa final a dream come true for Sampaoli|
|CSKA Sofia demoted due to financial crisis|
|Wolfsburg warn off De Bruyne suitors|
|Kone: I want to prove I can cut it at Everton|
|West Ham v Lusitans: Bilic set for first game in charge|
|Millennium Stadium to host 2017 UEFA Champions League final|
|Ronaldo a ´possibility´ for Portugal´s Olympics squad|
|Liverpool should get rid of Sterling - Grobbelaar|
|Miranda arrives for Inter medical|
|Arsenal can challenge the best - Cech|
|Real star Bale can be better than Ronaldo, says Keegan|
|UEFA approves changes to FFP rules|
|Honduras v Mexico: Moreno´s injury may force Mexican rethink pre-Gold Cup|
|Hiddink was the wrong man for Netherlands - De Boer|
|Vargas: I was scoring with every shot at training|
|Zambrano red rocked Peru - Gareca|
|Paraguay to change tack against Argentina|
|Sampaoli thrilled with substitutes´ influence, applauds Peru|
|Martino rues Copa America date with former side Paraguay|
|Former Birmingham City player Thwaites among Tunisia victims|
|Chile 2 Peru 1: Zambrano´s red card helps hosts into Copa final|
|Thiago Silva: ´I didn´t even know the ball had hit my hand´|
|Ronaldinho set to sign for Antalyaspor|
|Jara ban reduced on appeal by one match|
|Hiddink leaves Netherlands post|
|Cresswell pens new five-year deal at West Ham|
|Koeman: No serious United bid for Schneiderlin|
|Barbados eliminated from World Cup qualifying after fielding ineligible player|
|Former Catania president admits buying matches|
|Jones agrees Manchester United deal|
|Argentina v Paraguay: Valdez hoping not to need another comeback|
|Milan seal Bertolacci signing|
|Cech grateful to Abramovich and Chelsea fans|
|UEFA Champions League Preview: Brotherly pride at stake as B36 play TNS|
|UEFA Europa League Preview: Tommasi set to aid La Fiorita qualifying bid|
|Cech leaves Chelsea to join Arsenal|
|Paulinho ends Spurs frustration with Guangzhou move|
|Sampdoria confirm Eto´o exit amid Antalyaspor talk|
|Garcia departs Espanyol ahead of expected Qatar move|
|Watford to delay Doyley decision|
|Schlupp agrees new Leicester deal|
|Schweinsteiger hints at Bayern stay amid United links|
|Bertolacci thrilled ahead of Milan move|
|Langerak leaves Dortmund for Stuttgart|
|Muniain extends Athletic contract|
|Youngsters to get chance on US tour - Van Gaal|
|La Liga chief hits out at Real Madrid over TV rights opposition|
|Villa confirm Wilkins as assistant manager|
|Dicks joins West Ham coaching staff|
|Heldt enters to jeers, exits to cheers|
|Paraguay pride has grown at Copa America - Aguilar|
|Van Gaal tight-lipped on De Gea|
|Bacca confirms Milan agreement|
|Weight of expectation on hosts Chile to benefit Peru - Gareca|
|MLS Review: Timbers thump Sounders thanks to Adi´s double|
|Dzeko ´would run to Roma´ - Pjanic|
|Peru won´t sit back - Sampaoli|
|Zenga: Cassano, Balotelli will not be joining Sampdoria|
|Victory to start A-League defence away to Adelaide|
|I want to play MLS ´at the peak of my career´ - Johannsson|
|Allegri: I like Isco and Oscar|