The visit of second-placed Leeds United will not bring League One leaders Norwich City their biggest gate of the season, despite being a sell-out. The attendance at Saturday's promotion showdown is likely to be about 25,400, just below the 25,506 who watched the 2-1 home win over Hartlepool on January 30.

The visit of second-placed Leeds United will not bring League One leaders Norwich City their biggest gate of the season, despite being a sell-out.

The attendance at Saturday's promotion showdown is likely to be about 25,400, just below the 25,506 who watched the 2-1 home win over Hartlepool on January 30.

The shortfall is due to the "safety configuration" of seating - with the club needing to leave space between 2,250 Leeds fans and home supporters in the Jarrold Stand.

Season ticket-holders not planning to attend Saturday's game are urged to return their ticket under the "buy back" scheme, where the club will guarantee a credit against a future season ticket purchase (�10 for adult season ticket-holders, �7 for concessions and �3 for under-12s).

Meanwhile, the Canaries have been unable to obtain extra tickets for their League One game at Leyton Orient on Tuesday, April 13 (7.45pm).

City's entire allocation of 3,000 tickets has been sold. They approached the London club about further availability but have confirmed that it will not be possible to accommodate more visiting fans in the 9,271 capacity ground.

City fans are advised not to travel to the Matchroom Stadium without a valid ticket.

The Brisbane Road ground staged one of Norwich's greatest nights when they clinched promotion to Division One for the first time with a 2-1 win in April 1972.

City have 2,200 tickets on general sale for their next away game at Tranmere on Good Friday evening, which is being shown live on Sky Sports.

Tickets for the home game against Stockport on Easter Monday are on general sale, while those for the home game against MK Dons on April 10 will be available on Monday.

Supporters wanting to go to Charlton on April 17 will have to apply in writing after the club applied its priority allocation scheme. Closing date for applications is Monday, April 5.

City will have an allocation of 1,800 tickets for the final away trip of the season, at Bristol Rovers on May 1, and while they are yet to go on sale it is expected they will also be available by written application.