It's a small reminder that gives no indication of how close the 24-year-old came to losing his life.
Polak suffered severe brain bruising after he was hit by a tram following the Tigers' round-14 match against Carlton, spent a week in intensive care and is still undergoing a rehabilitation program while training with the club.
In the first of a three-part series, Polak tells richmondfc.com.au how much the support from around the country – more than 2000 emails flooded in to the club – has helped him as he battles to recover from the terrifying incident.
"Everyone's been great – I've got three folders jam-packed full of emails from people – fans of the club, fans of other football clubs, from all over the state and the country," he said.
"All sorts of people who just love football are just sending their support and saying they hope I get well soon.
"It's been great – the amount of support is unbelievable. It makes such a difference – just to see how much support I've got is incredible.
"The amount of people who've got behind me is just great – I can't thank them enough."
One of the prime motivators for his amazing recovery has simply been to return to his club and to be with his teammates.
"I've actually been back while the boys were on their end-of-season break, I was in here easing myself into it.
"So I've been doing it for a while – been seeing all the boys, and they've been fantastic towards me. It was just good to get out there and having a train, and just be part of it again.
"That was the thing that I think drove me the most – with all the boys coming in to see me at the hospital. The thing that I wanted most was to be back at the club, to be part of it again.
"I could hang with the boys instead of being at home by myself. Not being able to drive or to go do anything, to be back at the club with everyone, to be back with my mates, was the main thing I was looking forward to."
Polak said the club had given him and his family all the support they could have hoped for.
"They've been great, just great. When the family came over they set them up, and I've had people in every day just catching up with me.
"The club was unbelievable with the family side of it – they made sure everyone who wasn't staying at my house had a place to stay, they organised meals, etcetera.
"They all got set up with clothes and that sort of thing as well. Everyone put in a fair bit for me, thankfully."
The former Fremantle player is well aware of how much worse it could easily have been.
"It's unbelievable – the stories I've heard are that not many people have survived getting hit by a tram, so to walk away with nothing physically wrong with me – no limbs broken or lost, just to be able to walk ... it could have gone the other way and I fell on the track and the tram could have run over me.
"Luckily I fell onto the grass. I was told the mirror was the thing that hit me, so I nearly got across.
"I came off better than the tram – tiger-tough, don't muck around with me."
Polak has always been an easy-going person, and he's constantly poking fun at himself over the incident.
"It's not going to happen again, I know that, I'm aware of them now," he said with a laugh.
"It might be a bit early for a 'beware of trams' ad campaign, but I'll be there first in line for that job, I think."
