Looking for some action on tonight's games? A major sportsbook is offering a compelling deal for new users: place a $5 bet and get $300 in bonus bets if it wins. This offer is perfectly timed for a packed Tuesday slate featuring high-stakes NBA and MLB matchups.

The NBA Play-In Tournament kicks off with two win-or-go-home clashes. In the East, the Miami Heat face the Charlotte Hornets in an elimination game. Later, the Phoenix Suns, a playoff staple in recent years, take on the Portland Trail Blazers with the No. 7 seed in the West on the line. Expert models are already leaning towards the Suns to cover as 3.5-point favorites and are eyeing Tyler Herro to go over 21.5 points for Miami.

On the diamond, the Milwaukee Brewers host the Toronto Blue Jays in an intriguing pitching duel. The Brewers are sending young phenom Jacob Misiorowski to the mound. After a stellar rookie season and All-Star appearance, he's continued to impress with 28 strikeouts in just over 16 innings this year. He'll be opposed by Toronto's veteran ace, Kevin Gausman. With the Brewers off to a stronger start, they're favored to take this one at home.

Combining these expert picks into a single parlay could yield a significant payout. But first, securing that $300 in bonus bets with a winning $5 wager is the perfect way to build your bankroll for the exciting playoff and regular-season action ahead.