Marcelo Bielsa's side were left frustrated in LS11 but finally broke the deadlock on the hour as Hernandez slid past his man following a blocked shot to prod home into the top corner and secure all three points. Here's how we rated the performance...
7. Mateusz Klich
8 - Snapped at heels, kept Jonathan Swift quiet, made good runs, was clever in possession. | jpimedia
8. Pablo Hernandez
8 - Magic was needed and inspiration, once Phillips went off, and he delivered it. Wonderful footwork and finish. Played some great football too. | jpimedia
9. Jack Harrison
7 - Influential in the first half, put good balls into the area, quieter in the second half but was sharing the flank with a second winger, in effect, with Alioski. | jpimedia
10. Helder Costa
7 - Showed some incredible skill and the pace we're used to seeing regularly, without a telling final ball. | jpimedia
11. Patrick Bamford
5 - One of those days when nothing went his way. Never stopped working but this performance will be remembered for half chances he couldn't turn into good ones. | jpimedia
12. Gjanni Alioski (sub)
7 - Plenty of effort, gave Leeds a very potent look down the left. Couldn't quite get the jump on his markers for two good crosses that came his way. | jpimedia