The Pulse Newsletter | This is The Athletic’s daily sports newsletter. Sign up here to receive The Pulse directly in your inbox. Good morning! There’s a first time for everything. Coming up:  Major upsets already ⛹️‍♀️ Can anyone beat UConn? MLB pulls Polymarket lever I woke up yesterday slightly worried. Spending an entire week crowing about the coming greatness of the NCAA Tournament left me exposed a bit, if the first day of men’s tourney action was a dud. There goes Branch writing some meaningless fluff.  Instead, the sport — nay, the basketball...