A DRS bungle from James Vince threatens to rob England of hard-earned momentum in the fourth Ashes Test.
Vince failed to review his lbw dismissal after being given out for 17 shortly after tea on day two at the MCG.
Replays showed Vince had nicked the ball onto his pads, although it appeared to be a relatively faint edge.
The right-hander briefly conferred with veteran partner Alastair Cook before departing to leave England at 2-80 in reply to Australia's 327.
"It must have just been a tiny little feather," former Australian captain Michael Clarke said in the Nine Network commentary box.
"For a batsman not to feel or hear that, it must have been the slightest of edges.
"Generally, when you think you've hit the ball, as soon as the umpire puts his finger up you review straight away. Vince didn't do that. He was unsure and uncertain so he walked down towards Alastair Cook."
With Cook finding some much-needed touch and skipper Joe Root joining him at the crease, it's yet to be seen whether the dismissal will prove a major setback for England.
But it will be another frustrating moment for Vince, a classy shot maker who has shown enormous potential but largely failed to deliver on his promise in the Test arena.
The 26-year-old has made two half-centuries in the series but has frustrated at times with his poor shot selection, scoring 199 runs from seven innings at 28.42.
