Celtic, who are in a five-way fight with Halifax Town, Northwich Victoria, Weymouth and Altrincham to avoid the final two relegation places from the Blue Square Premier, follow up yesterday's defeat against Forest Green Rovers with a trip to York on Tuesday night and a home game against Grays Athletic next Saturday.

Defeat leaves Farsley Celtic in trouble: Click here for match report from Farsley's defeat against Forest Green Rovers.

* Click here for a picture slideshow of match action from the game.

* Click here for Farsley Celtic Clockwatch.

All next weekend's games kick off at 5.15pm, to enable Setanta Sports to show key developments as they happen, and Deacey believes those moments will go down in Celtic folklore.

"Forget the FA Cup against Tranmere in 1974, forget the play-off successes, this is the most important week in Farsley Celtic's history," said Deacey. "They don't get any bigger than this.

"This is the biggest week ever because we have got to stay in the Conference.

"Getting up there was massive, but to actually stay there is even bigger – that's how we feel as a club.

"It's been hard to make the transition and if Farsley do manage to survive it will be a fantastic achievement.

"We could then build on it for next season. We know how to prepare now, we know the mistakes we have made and where we have done well, and we would aim to improve on all areas – on and off the pitch – and progress from there."

Deacey was targeting at least a win and a draw from the last three games – and preferably two wins – with the hardest fixture, on paper, looking like the midweek trip to KitKat Crescent.

York have already beaten the Celts twice this season, two late goals giving them a somewhat flattering 4-1 scoreline in the league at Throstle Nest in November in Deacey's first game in charge following the departure of Lee Sinnott to Port Vale.

They then knocked Farsley out of the FA Trophy in February with a 2-0 success, the Minstermen sealing things with an 89th-minute strike.

Deacey said: "We have had two close games against York. They have scored late on in both and we are hoping it's a case of third time lucky.

"Colin Walker has done a great job in turning them around since he took over as manager, but we are hoping we can get a bit of luck and get the result because we need it.

"It is more than just a local derby for us.

They are stable, they are comfortable in mid-table and it is just another game for them – but we are fighting for our lives and we have to approach it that way."

Deacey is hoping his side can travel to York at full-strength after an horrendous run of injuries and suspensions.

Farsley looked to be almost home and hosed in the race for survival when they followed up victory over Weymouth with a superb 1-0 win at Torquay United on April 5.

But that game spelled the end of midfielder Craig Bentham's loan spell from Bradford City, and what followed was a catastrophe.

Defenders Amjad Iqbal (hamstring), Georges Santos (thigh), Mark Jackson (ankle), Ryan Serrant (ankle) and Stephen Downes (gashed knee) have all been struck down by injuries, along with midfielder Dominic Krief.

And James Knowles picked up a two-match ban for his dismissal at Oxford United last weekend.

Deacey was at the end of his tether when relegated Stafford recalled striker David McNiven from his loan spell on Monday – but the Celts boss managed to get them to change their mind and his luck now seems to be turning.

Knowles is available again on Tuesday, while Krief and Santos are ploughing on after receiving intensive treatment at Leeds United and Sheffield United respectively. And Deacey is also hopeful Jackson will return this week after what was feared to be a broken ankle has now been diagnosed as bad bruising.

Deacey said: "We would have been way out of it if we had had the side that played against Torquay. It would have been done and dusted by now, but the injuries have killed us.

"I don't know what I have done – but our luck has been horrendous. I ended up with six centre-forwards on the pitch at Ebbsfleet last Tuesday night.

"I am not making excuses, I know you do need a big squad, but the injuries are all in the same position. All of the back four have been out and that's what has absolutely hammered us.

"And the thing we need now more than anything is everybody back for the last two games – and that little bit of luck.

"I was hoping it wouldn't come down to the last game, though I did say at the turn of the year it would go right down to the wire.

"I'm really confident if the squad is there we can stay up and we have our physio working overtime to ensure that is the case.

"I would also like to thank the physios at Sheffield United and Leeds United as well because they have helped us out – they have been tremendous."

They are stable, they are comfortable in mid-table and it is just another game for them – but we are fighting for our lives and we have to approach it that way."

Deacey is hoping his side can travel to York at full-strength after an horrendous run of injuries and suspensions.

Farsley looked to be almost home and hosed in the race for survival when they followed up victory over Weymouth with a superb 1-0 win at Torquay United on April 5.

But that game spelled the end of midfielder Craig Bentham's loan spell from Bradford City, and what followed was a catastrophe.

Defenders Amjad Iqbal (hamstring), Georges Santos (thigh), Mark Jackson (ankle), Ryan Serrant (ankle) and Stephen Downes (gashed knee) have all been struck down by injuries, along with midfielder Dominic Krief.

And James Knowles picked up a two-match ban for his dismissal at Oxford United last weekend.

Deacey was at the end of his tether when relegated Stafford recalled striker David McNiven from his loan spell on Monday – but the Celts boss managed to get them to change their mind and his luck now seems to be turning.

Knowles is available again on Tuesday, while Krief and Santos are ploughing on after receiving intensive treatment at Leeds United and Sheffield United respectively. And Deacey is also hopeful Jackson will return this week after what was feared to be a broken ankle has now been diagnosed as bad bruising.

Deacey said: "We would have been way out of it if we had had the side that played against Torquay. It would have been done and dusted by now, but the injuries have killed us.

"I don't know what I have done – but our luck has been horrendous. I ended up with six centre-forwards on the pitch at Ebbsfleet last Tuesday night.

"I am not making excuses, I know you do need a big squad, but the injuries are all in the same position. All of the back four have been out and that's what has absolutely hammered us.

"And the thing we need now more than anything is everybody back for the last two games – and that little bit of luck.

"I was hoping it wouldn't come down to the last game, though I did say at the turn of the year it would go right down to the wire.

"I'm really confident if the squad is there we can stay up and we have our physio working overtime to ensure that is the case.

"I would also like to thank the physios at Sheffield United and Leeds United as well because they have helped us out – they have been tremendous."