Welsh centre Tom Shanklin breaks through the Scots defence

The Scots went to Cardiff full of confidence after their emphatic victory over Italy last weekend and a promising summer tour to South Africa.

But a team that started with just four of the men who began against the Italians misfired spectacularly as the Welsh defence exposed their lack of finishing power.

Scotland moved the ball sluggishly and with no invention, with only full back Glenn Metcalfe showing any spark in attack.

And when chinks opened in the Welsh rearguard the Scots were guilty of some very sloppy handling errors.

"I'm very disappointed because be got our priorities wrong," said McGeechan.

Wales take Scotland scalp

"It's easy for a game to become very difficult if you don't get the basics right and that's what happened today. "We weren't good in the contact area and that's where we excelled against Italy last week.

"We were also lateral which we haven't been for a few weeks. When you play like that it's easy to defend against.

"I can hardly remember Wales attacking in the second half, but we didn't have the cutting edge when we needed it. "With that much possession we should have done much better."

McGeechan revealed that skipper Scott Murray, who left the field injured in the first-half, has sustained a twisted knee and will be examined by an orthopaedic expert later tonight to determine the severity of the damage.

Scotland play their final World Cup warm-up match against Ireland at Murrayfield next weekend.