![Winter Classic 2023: Bruins, Penguins sport old-time baseball uniforms](https://media.d3.nhle.com/image/private/t_ratio16_9-size50/prd/naxlsyobraukfk6sci0a.jpg)
Pastrnak pays homage to Red Sox, Ortiz with Winter Classic equipment
![Winter Classic 2023: Bruins, Penguins sport old-time baseball uniforms](https://i.dailymail.co.uk/1s/2023/01/02/18/66126637-0-image-a-11_1672684194828.jpg)
NHL's Winter Classic: Bruins and Penguins players don Red Sox and Pirates gear at Fenway Park
![Winter Classic 2023: Bruins, Penguins sport old-time baseball uniforms](https://dims.apnews.com/dims4/default/3d67954/2147483647/strip/false/crop/3000x2000+0+0/resize/1486x991!/quality/90/?url=https%3A%2F%2Fstorage.googleapis.com%2Fafs-prod%2Fmedia%2Fd0e7e190fa994d33a90b46ff42dfb80a%2F3000.jpeg)
Fenway Park transforms for NHL's 14th annual Winter Classic
![Winter Classic 2023: Bruins, Penguins sport old-time baseball uniforms](https://kubrick.htvapps.com/htv-prod-media.s3.amazonaws.com/images/bobby-orr-to-jason-varitek-first-puck-pitch-2023-winter-classic-fenway-park-1672692606.jpg?crop=1.00xw:1.00xh;0,0&resize=900:*)
Orr to Varitek: Bruins, Red Sox greats deliver 'first puck pitch
![Winter Classic 2023: Bruins, Penguins sport old-time baseball uniforms](https://sportsnaut.com/wp-content/uploads/2023/01/19709665.jpg)
Bruins take winning ways to Fenway for Winter Classic vs. Penguins
![Winter Classic 2023: Bruins, Penguins sport old-time baseball uniforms](https://nypost.com/wp-content/uploads/sites/2/2023/01/winter-classic-079.jpg?quality=75&strip=all&w=878)
Bruins, Penguins rock vintage baseball uniforms at Winter Classic
![Winter Classic 2023: Bruins, Penguins sport old-time baseball uniforms](https://images2.minutemediacdn.com/image/fetch/https%3A%2F%2Fpuckprose.com%2Fwp-content%2Fuploads%2Fgetty-images%2F2018%2F08%2F1453657725.jpeg)
The 2023 NHL Winter Classic is a truly sensational matchup
![Winter Classic 2023: Bruins, Penguins sport old-time baseball uniforms](https://a.espncdn.com/photo/2023/0102/r1113002_1296x729_16-9.jpg)
Penguins-Bruins - Sights from Winter Classic at Fenway Park - ESPN
![Winter Classic 2023: Bruins, Penguins sport old-time baseball uniforms](https://nypost.com/wp-content/uploads/sites/2/2023/01/winter-classic-061-1.jpg?quality=75&strip=all&w=1024)
Bruins, Penguins rock vintage baseball uniforms at Winter Classic
![Winter Classic 2023: Bruins, Penguins sport old-time baseball uniforms](https://img.mlbstatic.com/mlb-images/image/upload/t_16x9/t_w1024/mlb/nizmyka7toarn4u2tyux.jpg)
Bruins win 2023 Winter Classic inside Fenway Park
![Winter Classic 2023: Bruins, Penguins sport old-time baseball uniforms](https://nbcsports.brightspotcdn.com/dims4/default/9d7aad9/2147483647/strip/true/crop/389x219+0+104/resize/1440x810!/quality/90/?url=https%3A%2F%2Fnbc-sports-production-nbc-sports.s3.us-east-1.amazonaws.com%2Fbrightspot%2Ff4%2F5e%2Fb9c2e5db467947e9c58f61a58930%2Fwinterclassic2011pitt1-e1293683139244.jpg)
Introducing the Pittsburgh Penguins' 2011 Winter Classic jerseys - NBC Sports
![Winter Classic 2023: Bruins, Penguins sport old-time baseball uniforms](https://i.dailymail.co.uk/1s/2023/01/02/18/66125199-11592633-image-a-15_1672685311560.jpg)
NHL's Winter Classic: Bruins and Penguins players don Red Sox and Pirates gear at Fenway Park