YORK City goalkeeper Chris Porter has already reached his ten clean sheet target but is now hungry for more shut-outs.

Porter set himself the double-figure challenge at the start of the season and it was met after Saturday's 1-0 home victory over Gravesend and Northfleet.

That match also represented the first time a City team has kept the opposition off the target in two consecutive matches during a league campaign since December 2004 when the club were still a Football League outfit.

Now Porter wants to extend that run to three games when City travel to Canvey Island tomorrow (3pm).

Porter, who has played in all but one game this season, said: "Strikers set themselves goal targets and I am similar - only it is my job to keep them out. My target at the start of the season was ten so it's really pleasing to get that now.

"I've worked hard to get ten and now I'll be looking to increase that tally and strive for a new target. Keeping a clean sheet is what I go out every game and try to achieve because if you do, it means that if your team can get one goal then you have got three points. It also means you have already got one if they don't."

Porter and fellow City goalkeeper David Stockdale received several man-of-the-match accolades during last season's battle against relegation from the Conference.

Both 'keepers were often called upon to make a string of saves in matches but have had fewer opportunities to display their shot-stopping skills this season.

But Porter, 26, has been happy to put team success before individual acclaim.

He said: "I'm more satisfied if I don't have much to do, the defence are playing brilliantly and Andy Bishop and Clayton Donaldson are scoring goals at the other end.

"The less I have to do the better really. Having said that, the games where you don't have as much to do can be difficult in terms of concentration.

"You always have to be on your toes because, if the opposition only have one shot and it goes in, it does not look good on me. I can't switch off for a second.

"It's my job as well to keep the rest of the lads on their toes for free-kicks and corners and I shout all the time in games."

Porter is also quick to praise his defensive team-mates for the part they have played in the recent clean sheets and recognises the value of continuity in centre-back positions which City were often without last season.

Ten different players in 13 different combinations were used by City in the middle of defence during 2004/2005 whereas in this campaign, aside from three games for loan man Lee Andrews in the role, it has always been a case of two men from a possible three.

Porter added: "The defence has been phenomenal in the last two games and I have not been the busiest. It is good to have strong centre-halves like Big Dave (McGurk) and Dudgey (James Dudgeon) in this league because you come up against a lot of big centre forwards and Mark Hotte also came in and played his part at Dagenham.

"It helps to have a settled defence because you then build up a relationship with each other on and off the field. You can discuss things more confidently in the dressing-room if you generally know what the team is going to be and you develop a better understanding."

Tomorrow's squads

Canvey Island (probable): Potter, Chenery, Ward, McGhee, Duffy, Kennedy, Sedgemore, Minton, Clarke, Ibe, Boylan. Subs: Conroy, McKinney, Tait, Hallett, Noto.

City (probable): Porter, Thomas, McGurk, Dudgeon, Peat, Convery, N Bishop, Panther, Dunning, A Bishop, Donaldson. Subs: Reid, Hotte, Merris, O'Neill, Webster.

Referee: Dave Phillips (Chichester).

KICK-OFF: 3pm.

Updated: 09:47 Friday, March 17, 2006