One of three footballing brothers, along with Joe and Chris, he is spending the second half of the 2018/19 season on loan at Crawley Town.
Formerly with Arsenal, he signed in the summer of 2012 and was a regular at Under-18 level before moving up to the Reserves. He was a key performer when the team won the Under-21 title in 2015/16, racking up 16 appearances and provided a winning combination of silk and steel in his midfield displays. He grabbed the only goal in the final game of that season, a 1-0 win at Chelsea’s Stamford Bridge. Willock appears to enjoy the big occasion, netting at the Etihad Stadium against Manchester City’s Development Squad and heading a dramatic last-gasp winner against Liverpool’s second string at Anfield. He came agonisingly close to a senior debut when being prepared to come off the bench on the final day of the Premier League season against Crystal Palace, only for Eric Bailly to recover from injury and soldier on. Instead, a first taste of senior football arrived in the Netherlands during a loan spell with FC Utrecht in the Eredivisie. Once that spell expired in January 2018, he headed to Scotland with St Johnstone and was regularly involved, scoring his first goal against Aberdeen. Willock returned north of the border in 2018/19, this time with St Mirren, whom he spent the first half of the campaign with. After a brief spell back at United in January 2019 he was spent out on loan again, this time to League Two side Crawley Town.