From the next corner, a Stephen McManus effort was turned onto the woodwork by Mallo.
"Stephen McManus, from my understanding, has no interest in going to Ipswich Town, " said Mowbray.
Celtic began the second half minus injured captain Stephen McManus, who was replaced with Marc Crosas.
Stephen McManus was the man to lose out in central defence following the return from suspension of Gary Caldwell.
But a Stephen McManus error allowed Fernando Llorente to tap in the winner.
And captain Stephen McManus will miss the start of the new season as he battles back from a knee injury.
Mowbray said it was an individual error that cost Celtic dear, the goal coming after a pass from Stephen McManus went astray.
Among those omitted from the squad were Celtic defender Stephen McManus, who is on loan at Middlesbrough, and Cardiff striker Ross McCormack.
McGeady joins fellow young Celtic players David Marshall, John Kennedy, Shaun Maloney and Stephen McManus in signing new contracts at the club.
"I am not too interested in people wanting to highlight negative things, " he said after Stephen McManus's last-minute Euro qualifying Group I winner.
It is understood that Everton had been approached by an agent offering Brown and Celtic defender Stephen McManus but said they were not interested.
Striker Chris Killen and midfielders Barry Robson and Willo Flood have all moved to Boro on permanent deals and defender Stephen McManus has joined them on loan.
Mowbray, who is unsure whether Scott Brown and Stephen McManus will recover from injury in time to make the European kick-off, recognises the need to be imaginative in the transfer market though.
Burley opted to play McFadden and Kenny Miller up front in a 4-4-2 formation, with stand-in skipper Stephen McManus recovering from a knock to take his place in the heart of defence.
But Spain demonstrated their threat when Villa escaped central defenders Stephen McManus and David Weir to latch on to a speeding ball from midfield, but his shot went over the bar from 18 yards.
Celtic boss Neil Lennon has recalled Stephen McManus from Middlesbrough and, if Campbell did sign for Celtic, he would join Dutch pair Glenn Loovens and Jos Hooiveld, Norwegian Thomas Rogne and Irishman Darren O'Dea in competing for a starting place.
Other past winners have included Bill Bryson, Stephen Hawking and Chris McManus.
BBC: NEWS | Science/Nature | Electric book wins science prize
应用推荐