Goldstein rolled his right ankle when he landed awkwardly in a marking contest in the first quarter of the Kangaroos' 21-point win over the Bombers at Etihad Stadium and was forced from the field.
He returned and played out the game, but coach Brad Scott said the in-form ruckman, who has carried the big man load this year with Hamish McIntosh out with an Achilles problem, would be tested during the week.
"He's pretty sore but I think he's sorer because they strapped him up so tight so he wouldn't do any damage," Scott said.
"He's a really important player for us and it was really important that he stood up and played the game out because in the absence of McIntosh all year, he's been vitally important to us.
"We won't take any risks with him because he's so important but we'll get him scanned and make sure he's okay for next week."
Goldstein could also miss the clash with the Power, which could see the Kangaroos enter the top eight for the first time this season should they win and other results go their way, with suspension if his report for striking Ben Howlett in the first quarter is upheld by the match review panel.
Scott said McIntosh, who has ramped up his work levels in recent weeks, would not be considered to face the Power even if Goldstein was ruled out.
"Hamish needs to play. He's been training but he hasn't even done much contesting work yet," he said.
"He'll need to get out and play at VFL level. We're really pleased with Drew [Petrie] and Cam Pederson and if we need to go that way, we know we can do that."
Scott said Saturday's win was one of the more satisfying in recent times as it proved the strength of his players' character when they fought back after the Bombers hit the front early in the final quarter.
"I thought we set the game up well early and to their credit, they really fought back hard in the face of a fair bit of adversity because I suspect they had a few injury concerns throughout the game," he said.
"They lost [Heath] Hocking [to concussion] but it looked like a couple of other players had minor injuries as well.
"For them to run the game out as hard as they did I thought was a credit to them.
"For our guys, it does show character when you're in front all day, you look to be controlling the game and then the opposition get a sniff and they get back in front for that short period of time."
Scott said the Roos benefited from some tough final-quarter efforts from Brent Harvey and Daniel Wells' continuing good form, while the form of his forwards was influential.
"I think our leaders are really starting to show the way for those young guys in terms of exactly how you've got to perform when the pressure is on and heat is on in a close game," he said.
"Aaron Edwards, Drew Petrie and Pederson really led as our key forwards from the front.
"All three competed exceptionally well, and whether they won the contest or not, they either won it or halved it more often than not. I thought that was really important in bringing our ground level players into the game."
Scott also said the Kangaroos had found themselves in a "fortunate position" when it came to selection with Cam Richardson and Matthew Campbell vying for a senior berth, and Lachie Hansen (concussion), Daniel Pratt (thumb) and McIntosh to return from injury.
"It's a position we haven't been in for a long time, where we have genuine selection dilemmas," he said.
"In the past, we've been looking for other players to fill a void and now we've got players who deserve their spot in the side."
