Meanwhile, the European Central Bank confirmed the eight teams for the new T20 competition will be based out of the five 2019 Ashes venues, plus Trent Bridge, Ageas Bowl and Cardiff.
Trent Bridge - the English venue that hosted one of Australia's most embarrassing defeats - has again been overlooked for future Ashes Tests. With Trent Bridge becoming the home of the 50-over final and Edgbaston the home of T20 finals day, there is a move to a pleasing consistency and symmetry about the list.
"We are absolutely delighted with today's outcome and hopefully it will be the catalyst for cricket to grow in Wales", said Glamorgan Chief Executive, Hugh Morris. When you combine that with our proven ability to sell out the stadium for high profile matches, this enabled us to put forward a compelling case to the European Central Bank to host regular Test Matches, a regular supply of limited over internationals and to continue as the home of the T20 Blast Finals Day over this five-year period.
Not only will the prospect of two Test matches with Australia help the club to clear its historic debts, but these two matches - and a raft of other global and T20 matches secured by Headingley - will be genuine money-spinners for the wider Yorkshire economy.
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"Emirates Old Trafford has been a Test venue for more than 130 years and we are proud of our rich heritage and history in hosting global fixtures".
"The SSE SWALEC is a fantastic venue for global cricket and we have excellent customer experience scores showing we provide fans with a 'Warm Welsh Welcome'.
To host the Ashes in 2023, following on from 2019, is one of the "moments" of cricket both from a playing, watching and hosting perspective, and will enable our vision of re-engaging our core cricket audiences across over 300 clubs in Lancashire, as well as every school in the North West, and attracting new fans through the new T20 tournament".
"With the 2022 Commonwealth Games recently awarded to Birmingham, these latest fixtures at Edgbaston Stadium are another tremendous endorsement of the region's ability to successfully deliver global sporting events".