London, Sept. 19 -- Marcus Rashford made a dazzling Champions League debut for Barcelona, inspiring them to a 2-1 victory as Newcastle United's campaign began with defeat at St James' Park.

On loan from Manchester United, Rashford proved the difference with two quick-fire second-half goals on Thursday that silenced the home crowd and left England manager Thomas Tuchel watching on impressed.

The breakthrough came on the 58th minute when he rose to meet Jules Kounde's cross with a precise header past Nick Pope. Nine minutes later, he delivered an even better strike - a thunderous 20-yard effort that crashed in off the crossbar, leaving Pope with no chance. They were Rashford's first Champions League goals in nearly four years.

It was a sta...