It will become the second toll road in Britain - following the M6 in Staffordshire - and will run between junctions 23 and 29 of the M4 to relieve congestion on the outskirts of Newport.
The newspaper reports that the Chancellor will agree to guarantee loans for the building of the M4 relief road, but the devolved Welsh government will meet the cost - expected to be around £830 million.
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Wales players have been tweeting their celebrations after last night's 1-0 win against Cyprus:
The Pro 12 season kicks off this evening with the Dragons and Ospreys both travelling to Ireland for their opening fixtures.
Use of plastic carrier bags has dropped by almost 75 per cent since the charge was introduced, according to a new report.