The 22-year-old has been playing well for the Addicks so far this season, and manager Bowyer has been hugely impressed.
The former Charlton, Leeds United and West Ham midfielder has also stated that Cullen could have joined a club in the Championship.
Bowyer told Charlton’s official website about Cullen: “He’s better than I was [at that age]. He’s a good player and I think you saw that at Southend, his first game. I think he did well but I know he’s going to do better.”
The Charlton manager added: “I was delighted [to sign him] because he was someone that we had to bide our time with. I know what qualities he brings to the squad.
“He’s got to the play-off final with Bradford, I know he’s got the experience and he’s a young lad that can play football and gets into the box. He’s an all-around midfielder.
“He’s someone we thought there was an outside chance of coming here but there was a chance of him going to the Championship, we knew that as he was at Bolton last season. He’s here now and he’s improved our squad.”
Future West Ham United star?
Cullen is 22 years age and has made a handful of appearances for the West Ham first team.
It is going to be hard for the Republic of Ireland Under-21 international - who earns £8,000 per week as salary, according to Spotrac.com - to establish himself in the West Ham starting lineup in the coming years.
There is no doubt, though, that Cullen has the talent and the potential to play at the highest level.
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