Supporters' group the Sky Blue Trust have responded to reports that Coventry will groundshare with Northampton for the next three years by organising a protest outside Sixfields Stadium on Thursday evening.

Sky Blues chief executive Tim Fisher in May revealed plans to move into a new stadium having claimed City had been given no choice but to leave the Ricoh Arena as their lengthy and bitter rent row rumbles on, with a proposal to play 'home' games elsewhere on an interim basis while it is being built.

Unconfirmed reports are now stating that a groundshare has been agreed and Coventry, from the start of the forthcoming 2013/14 campaign, will play at 7,600 capacity Sixfields - 34 miles across the M6 and down the M1 - with Town's home matches taking precedence.

Thursday's developments come as League Two Northampton have also agreed a £12million deal with Northampton Borough Council to redevelop Sixfields, increasing the capacity to around 10,000 along with the addition of a hotel, corporate boxes and a conference centre - with the new-look stadium hoped to ready next summer.

Yet, Cobblers chairman David Cardoza insists a groundshare agreement is far from complete amid speculation the Football League are meeting on Thursday to discuss the move. "There's some legs in this, but it's not near done and dusted," he told BBC Radio Northampton.

League One City are understood to be closing in on a site in the Coventry area to build their new stadium, just eight years after first moving from Highfield Road and becoming tenants at the 32,600 capacity Ricoh Arena.

The proposals has been met with fury and disappointment from the vast majority of Coventry supporters, with over 13,000 people having signed a local petition to keep City in Coventry. And The Sky Blue Trust are holding a protest outside Sixfields at 5.30pm to make their objections clear.

Trust spokesman Moz Baker explained: "We know supporters overwhelmingly oppose any move out of Coventry and the Trust's view is simple: it is unthinkable that CCFC play home games outside the city in which we were founded and is our home."

Arena Coventry Limited (ACL), who manage the Arena on behalf of joint owners the Alan Edward Higgs Charity and Coventry City Council, have insisted throughout the process that they remain committed to keeping the club at the stadium.

Meanwhile, Ricoh Arena management company ACL have issued their own statement. "We want to see the Sky Blues playing home games in their home city at their rightful home the Ricoh Arena," it read.