Rangers faced their toughest test of the season against Falkirk last Saturday.
The Gers beat Falkirk 3-1 in Scottish Championship action on Saturday, but the match was a keenly-contested one, which could have gone either way.
Rangers took the lead early on through Dean Shiels, but were pegged back when Will Vaulks grabbed an equaliser for the visitors.
It then took until the 81st minute for Mark Warburton's side to re-establish their advantage, when James Tavernier scored, before Lee Wallace's goal in stoppage time added gloss to the final scoreline.
And Law admitted: “It was a tough game, which we knew it would be, and I think that’s the toughest league game we’ve had so far.
“Most teams that have played us this season have sat back, but Falkirk came and had a go and pressed us high up the pitch.
“It was different for us and it took us a little by surprise. We obviously took the lead early-on, but we couldn’t continue our good start and they came back into the game with a great strike – as good a strike as you’ll see, but we didn’t really kick on after that and Falkirk played really well, but in the end, you would have to say we got the job done and in a lot of the games our fitness tells and I don’t think it’s a coincidence that we score a lot of goals late in games."
Law's role in the match was vital, as the midfielder played his part as an impact substitute to perfection.
The 27-year-old has found starting opportunities hard to come by recently, but he showcased his class to Warburton on Saturday.
Law came on and won the free-kick which led to Tavernier's goal, before his shot was tapped in by Wallace to seal the triumph.
He will be hoping that showing was enough to convince Warburton that he is ready for a starting berth in future matches, with Rangers still boasting a 100 per cent record after their opening nine league matches.