I can
@Mainoldo, and I'll start with Park.
At the same age Park Ji-Sung was about to be signed by Sir Alex after first impressing in the 2002 World Cup (semi-finals) and also making the semis of the CL in 2004-05, where thanks to his strong performances, Park was chosen, along with Andriy Shevchenko, Adriano, Samuel Eto'o, and Ronaldinho as
one of the nominees for the 2005 UEFA Best Forward award.
Fletcher at aged 24, (season In the 2008–09 season) was our standout midfielder and first choice. The following season he was named in the PFA Premier League Team of the Year.
Phil Neville was first choice United left back by the time he was the same age as Jesse. Jesse is definitely closest to Phil, but I don't see Jesse ever being first choice so in that sense he'll never reach the heights of Phil.