Andrej Sekera had some offers during free agency but decided to retire to take care of his ill newborn son and family (Slovak source, more in comments) : r/hockey
Oilers' Andrej Sekera undergoes surgery for achilles injury - Sports Illustrated
Andrej Sekera Hockey Stats and Profile at hockeydb.com
Andrej Sekera - Dallas Stars Defense - ESPN
Stars re-sign D-man Andrej Sekera to $3 million, 2-year deal - The San Diego Union-Tribune
Defenceman Andrej Sekera announces retirement after 15 seasons in the NHL
Andrej Sekera - Wikipedia
Longtime NHL defenseman Andrej Sekera officially retires - HockeyFeed
Andrej Sekera - Dallas Stars Defense - ESPN
Defenseman Andrej Sekera Re-Signs With Dallas Stars, Pens 2-Year $3 Million Deal - CBS Texas
Andrej Sekera Hockey Stats and Profile at hockeydb.com
Oilers' Andrej Sekera's perseverance leads to Masterton nomination
Andrej Sekera Stats, Profile, Bio, Analysis and More | Retired | Sports Forecaster
3,374 Andrej Sekera Photos & High Res Pictures - Getty Images
Dallas Stars place Andrej Sekera on waivers - Daily Faceoff
Andrej Sekera - Wikipedia
2016-17 Upper Deck Andrej Sekera Edmonton Oilers #72 | eBay
Andrej Sekera: Breaking News, Rumors & Highlights | Yardbarker
Oilers Buyout Andrej Sekera - The Copper & Blue
Slovak defenseman Andrej Sekera, 36, announces retirement | NHLPA.com
Allan Walsh🏒 on X: "Congrats to longtime client Andrej Sekera on playing his 800th NHL game tonight. #800Club https://t.co/WQGyEuahV4" / X
Oilers land Andrej Sekera, Mark Letestu | CBC Sports
Andrej Sekera signs 6-year, $33 million deal with Oilers - CBSSports.com