5 reasons why four-day Test cricket will not work

#2 Keeping spinners in the game

Ashwin and Lyon are currently among the best spinners in the world

Test cricket often challenges every skill of a player. Be it a batsman or a bowler, they need to adjust to different conditions and scenarios of the game. Hence, playing spin is also a big part of the game.

Barring conditions in the subcontinent (where the pitch usually tends to turn from day three onwards), most pitches in the world deteriorate only on days four and five. Hence, those two days bring spinners of the playing teams into the game. Even tracks which offer swing and seam (or green tracks) tend to turn on the final day. With the rough created by the fast bowlers, the spinners can utilize them.

Also, a few teams, especially from the Asia, love playing spinners and they are a big part of the team. Hence, bringing spinners into the game even if it is late in the Test match is important.