Tkachuk (6-foot-3, 196 pounds) joked that Matthew became jealous when he grew taller a little more than a year ago. Their bond was quickly mended.
"I wouldn't say we had a rivalry growing up," Tkachuk said. "He's my biggest supporter and I'm his biggest supporter."
If Tkachuk makes and sticks with the Senators out of training camp, the first game between the two brothers would be Feb. 24 in Ottawa. However, it isn't NHL or bust this year for Brady, a St. Louis native. He's thinking long term.
"I want to have a 20-plus-year career; a really long career," he said. "Whatever happens, I'm just going to take it day by day, just focus on getting stronger and better every day. There's no rush for a decision, but when a decision needs to be made, I'm going to talk it through with my family, my adviser and obviously Ottawa, too. But there's no rush for me."
Tkachuk had 31 points (eight goals, 23 assists) in 40 games with the Boston University last season. He describes his game as power and skill, and said his offseason training objectives revolve around getting faster and improving his puck handling.
"It's a big goal of mine to be ready, wherever I'm at in September," Tkachuk said. "If I'm here or if I'm somewhere else, I just want to make sure I'm ready and I'm as strong as I can be. But at the end of the day, if I'm not ready, that's another year of development. It's a big learning curve."