Rashid has been a permanent presence in England's one-day unit over the last four years which has seen them climb through the rankings following the shambolic group stage exit in the 2015 World Cup.
Rashid's persistent shoulder injury prevented him from delivering his deft variations and the unhelpful pitches in the tournament further augmented his problems drawing questions directed at his role in the England side.
But Rashid managed to retain his spot in the playing XI and repaid the faith entrusted on him by the team management when he caused all sorts of problems to the Australian batsmen in his team's eight-wicket hammering of the defending champions at Edgbaston on Thursday.
The 31-year-old returned impressive bowling figures of 3-54, his best showing in the tournament, which also included a double-strike to stall Australia's momentum just when Alex Carey and Steve Smith looked like taking charge of the proceedings.
"It was nice to make a batsman go for a cut on the back foot and spin it back in," said Rashid. "That's a nice feeling for any spinner that bowls a variation that a batsman doesn't pick and gets a wicket.
"I've probably not bowled them as much and the main reason was probably because I've got a bit of a shoulder problem.
"Before the shoulder, I was confident bowling everything but once you have a niggle it becomes a bit harder with the rotation -- the arm gets a bit lower and you don't find that snap.
"But I knew that was a big weapon for me... I knew I still had to bowl it even if I was in a bit of pain. Now I can get it back to my best."
Rashid waxed lyrical about Morgan's confidence in his abilities who kept using him as an attacking option to root out the opposition's batsmen even in the face of limited success.
"Morgs always had the faith in me, from day one until now. There are going to be games where you don't go well and games where you go well but he was confident in me," Rashid said.
"One hundred percent he's the best captain I've played under. He knows my game now inside out and I've been with him for four years, through good times and not so good times."