Welshman earns break after fine form in Champions League latter stages, whilst boss hails his side's winning mentality and is not thinking about record 19th title just yet
The Welshman has been in fine form in recent weeks with a string of top performances in the Champions League helping his side to knock out Chelsea in the quarter-finals, while he also starred in the 2-0 away victory over Schalke in midweek, scoring the opening goal.
Now the 37-year-old will be given a break ahead of the game at the Emirates, with Ferguson hoping to welcome top scorer Dimitar Berbatov back to the starting line-up for what could be a key clash in the title race.
Ferguson was quoted as saying by The Guardian: "It is a strange thing because Ryan's peak seems to have lasted so long now. You would think at 37, he would be showing signs of waning. I don't see any evidence of that. We look after him in terms of rest before games.
"He won't be playing on Sunday. He maybe will play next Wednesday. That is the way we have to deal with him now. When he gets that freshness, he doesn't show any sign of fatiguing at all. He is an amazing man."
Ferguson also went on to hail his side's resilience in recent weeks, and also the winning mentality that has seen them lie at the top of the Premier League table with four games to play and a lead of six points.
"This team doesn't understand the word defeat. It's determined, gritty and very professional, and it's produced some great moments," Ferguson continued.
"It might not have the 'Ronaldo' factor, but it's not as if we’ve been devoid of that ['fantasy']. Some of the football we’ve seen from the players this season has been terrific."
Despite being within touching distance of a record 19th league title, the 69-year-old insists his side are focusing on the immediate challenge ahead.
He added: "I don’t think it’s on our minds at the moment. If we achieve it, it’ll be great to reflect on, but at the moment we know we’ve got some hard games left. We look forward to the challenge, though.
"It’s important to keep momentum going by winning games. That’s vital. Draws don’t come into it now, it’s all about wins. We’ve got a big few games coming up and we need to win them."