London:Jonathan Trott vowed to stay as "relaxed as possible" after being handed arguably the most daunting set of circumstances possible in which to make his England Test debut.
The South Africa born batsman was named on Sunday in England's 14-man squad for next week's must-win Ashes Test against Australia here at the Oval and national selector Geoff Miller confirmed that, late injury permitting, Trott would play in place of the dropped Ravi Bopara.
Essex batsman Bopara managed just one and nought during England's innings and 80 run fourth Test defeat at Headingley, a result that saw Australia level the five-match Ashes series at 1-1 with the Oval finale, which starts on Thursday, to come.
Those scores compounded a poor series for Bopara who, batting at number three, has managed just 107 runs in seven innings against Australia at a meagre average of 15.
England, with Kevin Pietersen out of the series following the second Test because of an Achilles injury, decided they had to do something to stiffen the top-order and so selected Trott, in ther squad at Headingley but left out of the final XI.
"I'm chuffed as hell really. I've been playing pretty well this season so hope I can play well this week," Trott told BBC Radio 5 Live's Sportsweek programme on Sunday.
"I'm pretty much going to try and stay as relaxed as possible. I'd like to think that under pressure I perform - we'll see this week," added Trott, whose only previous experience of senior international cricket saw him score 11 runs in two back-to-back Twenty20s against the West Indies at the Oval in 2007.
Trott, who played for South Africa Under-19s but qualified for England on the basis of parentage, has been in fine form this season.
The 28-year-old reinforced his case for a Test call earlier this week with 121 for Warwickshire, whose director of cricket Ashley Giles is also an England selector, against Nottinghamshire at Trent Bridge.
That was his fourth first-class hundred of the season and took his overall tally to 1,046 runs at an average of 80.46.
Despite Australia needing merely to avoid defeat in south London next week to hold onto the Ashes, Trott said: "A lot of pressure is on the Australian side to retain the Ashes," he added.
"I think we have to go out and try to play to win and with that positive mindset hope we will get the result."
Trott, who is set to bat at number four with Warwickshire colleague Ian Bell promoted to Bopara's old slot of number three, said he would be inspired by the memory of England's Ashes series win four years ago.
"I've been thinking about my call-up this morning and going back to 2005 when England won the series. I remember thinking back then what a great chance it would be to be involved - and now I've got my chance."
Ricky Ponting's men require only a draw at the Oval to hold onto the Ashes after whitewashing England 5-0 on Australian soil in 2006/07.