Jesus Navas eventually scored the stunning late goal that won it for Spain.
Back in action: Spain's Cesc Fabregas takes on Woo Kim Jung of South Korea
Fabregas, linked with a move to Barcelona this week, played for an hour without any problems.
He admitted: 'It's been a tough match. We are coming off a long season and a build-up with a lot of training sessions, morning and afternoon, and it tells.
Target practice: Spain's Jesus Navas (left) shoots past South Korea's Lee Young-Pyo
'The first half was better than the second for me. But I am feeling good.'
Pepe Reina made a couple of important saves in the match. Striker Fernando Torres remains the only Spanish player not to have featured in the warm-up matches as he continues his recovery from knee surgery.
Yaya Toure closer to Manchester City switch as midfielder's agent demands talks with BarcelonaFabregas battle not finished as Barcelona refuse to back down