Nah he was celebrating and then just looked around to see if it was offside
On second viewing it probably does look like he's signalling that he was offside and not Morata.
A few people are making similar comments about Bobby Charlton. Has he said anything disrespectful to the region? Or is it the absence of saying positive things? Genuinely curious.
Loved Thatcher
https://twitter.com/BTCare/status/788806600110772225?lang=en-gb
"It is on BT Sport 2 Sky channel 414. It will be free from the start of the match ^RachC"