The Scotland international was the victim of a heavy tackle from Carlos Forbs towards the end of the match, which the Wolves attacker incurred a yellow card for.
Robertson received treatment before having to call it a day in the 89th minute, as fellow long-serving defender Joe Gomez saw out the narrow win, which took Liverpool to the top of the Premier League table.
Slot was quizzed on Robertson's fitness during his post-match media duties, but the Dutchman expressed optimism that the left-back had only sustained a knock and will be fit as a fiddle on Monday.
"I don't expect this to be a big problem, although you never know, but I think he just got a knock. End phase of the game, maybe he was a bit tired as well," Slot told reporters.
Slot gives no guarantees over Robertson fitness
"The guy who came in - Forbs, I knew him, of course, from the Dutch competition - he made it a real fight for him. He got a bit of a knock but I'm expecting him to be in training on Monday again, but let's wait [and see]."
Prior to his enforced withdrawal, Robertson was a livewire down the left-hand side for Liverpool, who took the lead at Molineux in first-half injury time thanks to Ibrahima Konate's first Premier League goal.
However, the Frenchman then went from hero to zero, as he was robbed of the ball far too easily in his own penalty area by Jorgen Strand Larsen, and Gary O'Neil's men took full advantage as Rayan Ait-Nouri drew them level.
The hosts were only on terms for five minutes, though, as Diogo Jota was brought down by Nelson Semedo inside the penalty area soon after, and Mohamed Salah made no mistake with the resulting spot kick.
Thanks to Manchester City's 1-1 draw with Newcastle United earlier in the day, Liverpool are now sitting pretty at the top of the rankings after six games, one point clear of the reigning champions and Arsenal.
Slot grounded over title talk as Liverpool go top
Slot unsurprisingly stayed grounded when asked about Liverpool's title prospects this season, though, adding: "It's almost ideal that we played Wolves today because we are top and they're last and they absolutely don't deserve to be last.
"We still have to prove that when we come across Arsenal, Newcastle, Chelsea [and] Aston Villa [to see] if we can then still be up there with Champions League games included as well.
"I think everybody is realistic enough. All the players have so much experience that they understand six games into the season doesn't give you a realistic view on the league table. That is more like in 19 games then you can really feel, 'OK, where are we?'
"But of course it helps if you get some good results, especially if you bring in a new manager and a new staff and being a successor of such a successful one. Of course everybody understands that if we'd have lost four or five out of these first six fixtures that life would've been a bit different than it is."
Liverpool now have three full days to rest and recover before Bologna visit Anfield on Wednesday for the Reds' first Champions League home game of the season.