NEWCASTLE, Celtic and PSV Eindhoven will take part in a quadrangular tournament in Dublin at the start of next season. The fourth team will be the League of Ireland Premier Division champions - either favourites Derry City or Dublin side Shelbourne who are currently fighting for the title. The games will all be played at Lansdowne Road on July 15 with the Irish champions taking on Scottish side Celtic in the first game, followed immediately by England's Newcastle v Dutch side PSV. The following evening the third and fourth place play-off takes place followed by the tournament final. Initial reaction suggests the 40,000 tickets for each evening could sell out quickly and a major sponsor is expected to be announced next week. The matches could eventually be televised to 76 nations around the world with the Football Association of Ireland expecting to collect in the region of GBP400,000 profit. 'The major reason for staging this tournament is to ensure that the side representing the Republic of Ireland in next season's European Champions' League qualifiers will have full match fitness,' said FAI chief executive Bernard O'Byrne. 'It will also give Irish fans the chance to see top sides in action in Dublin.' Celtic will be on their second visit to Dublin in a matter of weeks as earlier the Republic of Ireland play host to the Glasgow side at the same Lansdowne Road venue in a testimonial match for the Glasgow side's Republic of Ireland goalkeeper Pat Bonner on May 18. West Brom's Paul Peschisolido considered retiring from the national team after putting Canada's World Cup hopes in jeopardy when he was kicked out of Sunday's match against El Salvador. The player sent a letter of apology to the Toronto Star and will now talk to coach Bob Lenarduzzi.