The identity of Nonu's midfielder partner is the big question. Will it be the in-form TJ Faiane or All Black Sonny Bill Williams, who has played no games in pre-season? It wouldn't surprise to see Williams get the nod as MacDonald and the Blues seek to start the season against their old rivals with a bang.
"Sonny is a quality player and has trained really well and is available for selection," MacDonald told the Herald. "Ma'a's performance – we haven't seen him play yet and he played really well. One of the most consistent players in our whole pre-season campaign has been TJ Faiane who is carrying on his good Mitre 10 Cup form. It's going to be a hot topic, that selection in the midfield."
MacDonald added of Nonu: "He scored a really good try, carried hard and was aggressive in defence. He was really good actually. It was his first game in a while and he said the pace of the game was a bit different to what he had been experiencing in France, but he loved it.
"He's a popular member of the team. At 14-0 down, he was probably the calm voice which helped keep the composure in the group; he helped us keep our focus.
"There are some good players who have played good rugby over the last couple of weeks who are going to miss out. That's always a tough conversation to have but it's what we want [selection pressure].
"The midfield is obviously a key area. The front row was performed really well in the absence of [All Blacks] Karl [Tu'inukuafe] and Ofa [Tuungafasi] so there are plenty of selection headaches."
The Blues did well to fight back from their early deficit but MacDonald will know more than most about the attacking firepower the Crusaders, his former team, possess. Similar defensive slip-ups will be cruelly punished by Scott Robertson's men at Eden Park but the willingness and determination to hold the Hurricanes out for long periods impressed MacDonald.
"We got back to 14-all and played well in the second half. It was a good performance. We were thrilled with it. A lot of our young guys came on in the second half and although we conceded a few tries they still showed a lot of grit and fight.
"The willingness to work hard for each other was great. There were long periods of time on defence and we held them out.
"Our set piece and scrum in particular was strong. It's always exciting when your set piece is functioning well."
There have been many false dawns at the Blues over the past decade but they are at least going into the first game with some form and results behind them. Now for the real thing against the defending champions.