Three of the four NBA conference semifinals are already in the books, which leaves Cavaliers at Pistons Game 6 carrying the entire American slate for the week. Across the Atlantic the calendar tilts hard the other way: EuroLeague Final Four arrives in Berlin on Friday with Olympiacos, Fenerbahce, Real Madrid and Valencia, the ACB and Lega A semis tip off, and the BBL playoffs grind through a second-round weekend. Quantity light, gravity high.

Cleveland Cavaliers at Detroit Pistons, Game 6

Series tied 3-2, Cavaliers leading, tipoff Monday in Detroit. The shape of this one flipped twice in five days. Detroit blew Cleveland off the floor in Game 4 on home court, then Cleveland answered with a 125-94 demolition in Game 5 that was as comfortable as any road game can be in a conference semifinal. The Pistons shot the ball cold from the perimeter and the Cavs ran their five-out spacing through the middle without resistance.

What changes for Game 6 is the matchup math at the rim. Detroit needs to close out earlier on Cleveland's pull-up game and get back to forcing the Cavs into mid-range twos rather than corner threes. The Pistons' rebounding edge has been the constant through five games: even in losses, they have stayed within two boards on the night, which has kept second-chance possessions roughly even. Where they have lost games is at the foul line. Cleveland is shooting 84.1 percent from the stripe through the series, Detroit 73.6, and over five games that gap has erased every late-quarter run Detroit has tried to mount.

The route to Game 7 for Detroit goes through their bench guard rotation. Cleveland's starters have logged heavy minutes and the Cavs are playing on three days rest with no travel, but the Pistons' second unit has outscored Cleveland's reserves in three of the five games. If Detroit can drag this into a fourth quarter with single-digit margin, the bench-versus-bench math favors the home team. If Cleveland gets out by 12 by halftime the way they did in Game 5, the series ends Monday.

EuroLeague Final Four: Friday in Berlin

Friday, 22 May, Uber Arena. Two semifinals in one night: Real Madrid versus Valencia at 18:00 CET, then Fenerbahce versus Olympiacos at 21:00 CET. The Sunday final and third-place game wrap the weekend.

Olympiacos arrive as the regular-season top seed and a club that swept its quarterfinal series 3-0 against Anadolu Efes, the kind of efficient closeout that says a roster understands itself. Their defensive shape under Georgios Bartzokas remains the most reliable in the league: top-three defensive rating, and a closeout system that funnels the European top scorers into help-side traffic. Fenerbahce, the other Friday late-game, is the team most likely to disrupt that system. Sarunas Jasikevicius' rotation has built its offense around pace and live-ball turnovers, and the head-to-head meetings during the Regular Season went 1-1 with both games tipping into the final minute.

The earlier semifinal is the bigger style mismatch. Real Madrid play through structure: pick-and-pop, hammer screens, and a half-court rhythm that Sergio Llull and Sergio Rodriguez set rather than chase. Valencia have spent the season in transition and on the offensive glass, with the league's highest second-chance points per game. If Valencia get loose for ten run-out possessions in the first half, they win. If Madrid pin the game to the half-court, the experience gap tells. The basket-average tiebreaker is irrelevant from here, but worth noting for context: Valencia would be the first Spanish club other than Madrid or Barcelona to win a EuroLeague Trophy since Saski Baskonia in 2002.

The Final Four MVP is awarded separately from the Regular Season MVP, and the live betting board has Olympiacos as champion favorites with Madrid second, Fenerbahce third, Valencia a clear fourth. The shorter price reflects defense, not stars.

Liga ACB semifinals: Tenerife host Joventut, the bracket tightens

Liga ACB enters the semifinals after a chaotic quarterfinal round. Joventut Badalona at Tenerife on Wednesday opens the best-of-five, with the Canaries holding home-court advantage thanks to a 22-12 Regular Season record. Tenerife's edge through the season has been their three-point defense: they allow opponents the lowest 3P percentage in the league at 33.1, a function of Txus Vidorreta's switching scheme rather than any single closeout artist.

Joventut's path to the upset is their pace. They play the second-fastest tempo in Liga ACB and ranked third in offensive rebounding rate during the Regular Season, and Tenerife's depth at the four position has been thin since February. If Andres Feliz can pull Tenerife's bigs out to the perimeter on side pick-and-rolls, Joventut's wings can crash the glass without paying defensively. Watch the first quarter possession count: under 22 says Tenerife controls the tempo, over 25 says Joventut have dragged them into a track meet.

The other ACB semifinal, Unicaja against Breogan, tips Saturday in Malaga. Unicaja are the defending Copa del Rey holders and have not lost a home playoff game in two seasons.

Lega A semifinals: Olimpia Milano start at home, Virtus Bologna draw the harder road

Olimpia Milano host Reggiana on Monday in the opener of the Lega A semis, with Virtus Bologna at Trento on Tuesday in the other bracket. Milano enter as the favorite on paper but with a roster that has played the most minutes of any club in Europe this season between Lega A and EuroLeague commitments. Ettore Messina has talked openly about load management through April, and the rotation has shrunk to nine players. Reggiana, by contrast, are rested, healthier than they have been since November, and finished the Regular Season with the third-best defensive rebounding rate in the league.

Virtus Bologna versus Trento is the rougher matchup for the heavier name. Trento have won six of their last eight on home floor, with a defensive scheme built around two-big lineups that crowd the paint and dare opposing guards to shoot pull-up twos. Virtus' guard combination of Marco Belinelli and Daniel Hackett have lived in the mid-range all season; this series is going to be decided on whether they can convert at the rim instead.

BBL second-round playoffs: Alba Berlin and Bayern try to close

The Bundesliga playoffs run alongside everything else this week. Alba Berlin hold a 2-1 series lead over Vechta heading into Tuesday's Game 4 at home, with a closeout opportunity that would slot them into a likely semifinal date with Ulm. Bayern Munich are in similar shape against Trier. The two BBL games inside the EuroLeague Final Four city this weekend make for an unusually loud Berlin basketball weekend even by the city's standards.

WNBA opens its first full week

The WNBA Regular Season ramps into a full slate this week with 18 games on the board, including the Toronto Tempo's third game in franchise history at Phoenix on Tuesday and the Portland Fire's home debut against Indiana on Wednesday. The Liberty face Golden State Valkyries on Thursday in a rematch of last year's playoff first round.

What ties the week together

The shape of basketballstreams' week is a postseason narrowing on both sides of the Atlantic. The NBA bracket has cleared down to one live series. EuroLeague has cleared down to four clubs in one arena. The European domestic leagues have cleared down to their semifinal weekends. By Sunday night, the field across all major leagues will be tighter than it has been since February, with the EuroLeague trophy decided, two NBA conference finals matchups set, and the ACB and Lega A finalists known. Heavy stakes, manageable volume. Pick your moments.