Karl Hein admits he was more impressed with Arsenal than Manchester United when choosing between the two clubs.
The Estonian goalkeeper received offers from both clubs in 2018 before deciding on a move to the Emirates.
"I actually received an offer from Manchester United around the same time too," he told the Arsenal matchday programme.
"When I first received offers from them and Arsenal I was honoured because they're both such massive clubs with an impressive history, so it was a hard decision to make, but right from the start I just loved Arsenal. Everything felt so right.
"When I was on trial, the impression that they gave me was so impressive because I loved the atmosphere at the training ground and the way all the people spoke to me and welcomed me. After that I just had this gut feeling that Arsenal was the right place for me and my development."
