Liverpool FC defender Andrew Robertson has deactivated his Twitter account following Liverpool’s 2-0 defeat to Napoli in their Champions League opener.

Robertson fouled Jose Callejon in the box in the 80th minute, allowing Dries Mertens to give Napoli a late lead which they then doubled through Fernando Llorente in injury time.

Although the award of the penalty has been subject of much debate, with Callejon appearing to dive into Robertson’s leg, a defender with his experience should perhaps not have so rashly stuck out his leg.

The Scot had been struggling throughout the game, having previously been booked for a cynical shirt pull on Callejon. He also committed four fouls in the match, the most by a player from either side.

Defeat in their opening game appeared to rile some Liverpool’s sufficiently to direct online abuse towards Robertson, who was seen as the main antagonist in the club’s downfall in Naples.

Player ratings: Napoli vs Liverpool Show all 23 1 /23 Player ratings: Napoli vs Liverpool Player ratings: Napoli vs Liverpool Napoli vs Liverpool: Player ratings Soccer Football - Champions League - Group E - Napoli v Liverpool - Stadio San Paolo, Naples, Italy - September 17, 2019 General view as Napoli and Liverpool players line up before the match REUTERS/Ciro De Luca Reuters Player ratings: Napoli vs Liverpool Meret - 8 Man of the match. SSC NAPOLI via Getty Images Player ratings: Napoli vs Liverpool Di Lorenzo - 7 Napoli's Giovanni Di Lorenzo controls the ball during the Champions League Group E soccer match between Napoli and Liverpool, at the San Paolo stadium in Naples, Italy, Tuesday, Sept. 17, 2019. (AP Photo/Gregorio Borgia) Gregorio Borgia AP Player ratings: Napoli vs Liverpool Manolas - 6 Napoli's Greek defender Konstantinos Manolas (L) defends against Liverpool's Egyptian midfielder Mohamed Salah during the UEFA Champions League Group E football match Napoli vs Liverpool on September 17, 2019 at the San Paolo stadium in Naples. (Photo by Andreas SOLARO / AFP)ANDREAS SOLARO/AFP/Getty Images ANDREAS SOLARO AFP/Getty Images Player ratings: Napoli vs Liverpool Koulibaly - 7 Napoli's Senegalese defender Kalidou Koulibaly (R) defends against Liverpool's Egyptian midfielder Mohamed Salah during the UEFA Champions League Group E football match Napoli vs Liverpool on September 17, 2019 at the San Paolo stadium in Naples. (Photo by Andreas SOLARO / AFP)ANDREAS SOLARO/AFP/Getty Images ANDREAS SOLARO AFP/Getty Images Player ratings: Napoli vs Liverpool Mário Rui - 7 NAPLES, ITALY - SEPTEMBER 17: Mario Rui of SSC Napoli vies with Mohamed Salah of Liverpool FC during the UEFA Champions League group E match between SSC Napoli and Liverpool FC at Stadio San Paolo on September 17, 2019 in Naples, Italy. (Photo by Francesco Pecoraro/Getty Images) Francesco Pecoraro Getty Images Player ratings: Napoli vs Liverpool Callejón - 7 Napoli's Jose Callejon, left, and Liverpool's Andrew Robertson fight for the ball during the Champions League Group E soccer match between Napoli and Liverpool, at the San Paolo stadium in Naples, Italy, Tuesday, Sept. 17, 2019. (AP Photo/Gregorio Borgia) Gregorio Borgia AP Player ratings: Napoli vs Liverpool Allan - 7 Napoli's players Lorenzo Insigne, right, Allan, center, and Dries Mertens, left, celebrate their victory at the end of the Italian Serie A soccer match between ACF Fiorentina and SSC Napoli at the Artemio Franchi stadium in Florence, Italy, Saturday, Aug. 24, 2019. (Claudio Giovannini/ANSA via AP) Claudio Giovannini AP Player ratings: Napoli vs Liverpool Insigne - 6 Napoli's Italian forward Lorenzo Insigne (C) challenges Liverpool's English defender Trent Alexander-Arnold during the UEFA Champions League Group E football match Napoli vs Liverpool on September 17, 2019 at the San Paolo stadium in Naples. (Photo by Alberto PIZZOLI / AFP)ALBERTO PIZZOLI/AFP/Getty Images ALBERTO PIZZOLI AFP/Getty Images Player ratings: Napoli vs Liverpool Ruiz - 7 Soccer Football - Serie A - Napoli v Sampdoria - Stadio San Paolo, Naples, Italy - September 14, 2019 Napoli's Fabian Ruiz in action with Sampdoria's Alex Ferrari REUTERS/Ciro De Luca CIRO DE LUCA REUTERS Player ratings: Napoli vs Liverpool Mertens - 8 Napoli's Belgian forward Dries Mertens (L) challenges Liverpool's English defender Trent Alexander-Arnold during the UEFA Champions League Group E football match Napoli vs Liverpool on September 17, 2019 at the San Paolo stadium in Naples. (Photo by Alberto PIZZOLI / AFP)ALBERTO PIZZOLI/AFP/Getty Images ALBERTO PIZZOLI AFP/Getty Images Player ratings: Napoli vs Liverpool Lozano - 6 NAPLES, ITALY - SEPTEMBER 17: Hirving Lozano of Napoli battles with Joel Matip and Trent Alexander-Arnold of Liverpool during the UEFA Champions League group E match between SSC Napoli and Liverpool FC at Stadio San Paolo on September 17, 2019 in Naples, Italy. (Photo by Laurence Griffiths/Getty Images) Laurence Griffiths Getty Images Player ratings: Napoli vs Liverpool Adrian - 8 Napoli's Belgian forward Dries Mertens (R) challenges Liverpool's Spanish goalkeeper Adrian during the UEFA Champions League Group E football match Napoli vs Liverpool on September 17, 2019 at the San Paolo stadium in Naples. (Photo by Alberto PIZZOLI / AFP)ALBERTO PIZZOLI/AFP/Getty Images ALBERTO PIZZOLI AFP/Getty Images Player ratings: Napoli vs Liverpool Alexander-Arnold - 7 Player ratings: Napoli vs Liverpool Matip - 7 NAPLES, ITALY - SEPTEMBER 17: Hirving Lozano of Napoli battles with Joel Matip and Trent Alexander-Arnold of Liverpool during the UEFA Champions League group E match between SSC Napoli and Liverpool FC at Stadio San Paolo on September 17, 2019 in Naples, Italy. (Photo by Laurence Griffiths/Getty Images) Laurence Griffiths Getty Images Player ratings: Napoli vs Liverpool Van Dijk - 7 Liverpool's Dutch defender Virgil van Dijk (R) defends against Napoli's Belgian forward Dries Mertens during the UEFA Champions League Group E football match Napoli vs Liverpool on September 17, 2019 at the San Paolo stadium in Naples. (Photo by Alberto PIZZOLI / AFP)ALBERTO PIZZOLI/AFP/Getty Images ALBERTO PIZZOLI AFP/Getty Images Player ratings: Napoli vs Liverpool Robertson - 6 Getty Player ratings: Napoli vs Liverpool Milner - 6 Soccer Football - Champions League - Group E - Napoli v Liverpool - Stadio San Paolo, Naples, Italy - September 17, 2019 Liverpool's James Milner in action with Napoli's Jose Callejon and Allan Action Images via Reuters/Andrew Couldridge ANDREW COULDRIDGE Action Images via Reuters Player ratings: Napoli vs Liverpool Henderson - 7 NAPLES, ITALY - SEPTEMBER 17: Hirving Lozano of Napoli controls from Jordan Henderson of Liverpool during the UEFA Champions League group E match between SSC Napoli and Liverpool FC at Stadio San Paolo on September 17, 2019 in Naples, Italy. (Photo by Laurence Griffiths/Getty Images) Laurence Griffiths Getty Images Player ratings: Napoli vs Liverpool Fabinho - 7 Liverpool's Brazilian midfielder Fabinho (C) defends under pressure from Napoli's Mexican forward Hirving Lozano (L) during the UEFA Champions League Group E football match Napoli vs Liverpool on September 17, 2019 at the San Paolo stadium in Naples. (Photo by Alberto PIZZOLI / AFP)ALBERTO PIZZOLI/AFP/Getty Images ALBERTO PIZZOLI AFP/Getty Images Player ratings: Napoli vs Liverpool Salah - 6 Getty Player ratings: Napoli vs Liverpool Firmino - 6 Liverpool's Roberto Firmino takes a shot during the Champions League Group E soccer match between Napoli and Liverpool, at the San Paolo stadium in Naples, Italy, Tuesday, Sept. 17, 2019. (AP Photo/Gregorio Borgia) Gregorio Borgia AP Player ratings: Napoli vs Liverpool Mane - 7 Napoli's Brazilian defender Allan (L) tackles Liverpool's Senegalese striker Sadio Mane during the UEFA Champions League Group E football match Napoli vs Liverpool on September 17, 2019 at the San Paolo stadium in Naples. (Photo by Andreas SOLARO / AFP)ANDREAS SOLARO/AFP/Getty Images ANDREAS SOLARO AFP/Getty Images

Robertson, who was named in the PFA Team of the Year and UEFA Champions League Squad of the Season in 2018/19, has responded by deactivating his Twitter account.

This is not the first time that the Liverpool fanbase has come under scrutiny for their social media activities.