切削
在网球中，切削(slice)是一种通过由高到低贯穿球体挥拍打出的下旋击球，会产生一记又低又滑行的弹跳。(这与高尔夫球中的“slice”不同——高尔夫的slice是一种曲线弯飞的失误击球。)
网球中的切削，是由一个打开的拍面由高到低穿过球体运动而产生的，这会赋予球下旋。球拍从预定接触高度上方开始，向下擦刷过球的后部，打开的拍面角度会阻止球翻转、产生上旋。结果是一颗沿水平轴向后旋转的球——下旋——它在弹跳时与场地表面相互作用，会保持低平、滑行，而不是向上弹起。这种又低又快的滑行，正是切削作为过渡球如此有效的原因:对手必须从一个较低的接触点向上挥拍，从而打出一记防守性的回球。
从战术上讲，切削是网球中最多用途的击球之一。作为过渡球，它能让球保持低平，给切削一方留出上前逼近网前的时间。作为对一记重上旋球的防守性回球，它能中和力量、争取回位时间。在“发球加一拍”套路中，宽角发球之后打向反手角落的一记切削，能让对手保持伸展状态、场地敞开。面对一名重度依赖底线力量的对手，在上旋相持中穿插使用切削，能同时改变力度、旋转和弹跳高度，打乱对手的节奏——迫使对方在每一击上都重新校准。
在各个水平上，反手切削都远比正手切削更常见。生物力学对它有利:反手一侧的由高到低动作，顺应一条自然的手臂路径，配合一个打开的拍面，而正手切削则需要大多数球员觉得别扭的不寻常手腕位置。话虽如此，正手切削——在处理低球时有时被称为“壁球式击球”——在球急剧落到持拍手一侧时，依然是一件正当的武器。两个版本使用的是相同的原理，但握拍和站位不同:反手切削通常使用大陆式握拍、身体侧向站位;正手切削则常常在开放式站位下、用东方式或半西方式握拍，处理宽角或低球时打出。
需要注意的是:“slice”这个词是一个真正跨项目的同音异义词。在高尔夫中，slice是一种不受欢迎的、从左到右弯曲的球路(对右手球手而言)，由一个打开的拍面和一条由外向内的挥杆路径造成——这是一种失误，而不是刻意的技术。在网球中，切削则是一种刻意、受控的下旋击球。这是两个独立的词条;本条目只涵盖网球中的用法。
Keep the racquet face open and swing THROUGH the ball rather than chopping at it. Think of guiding the ball forward with the face slightly tilted back — the goal is backspin plus depth, not just a downward chop.
Vary the amount of slice to change the shot's character. A heavy backspin slice stays very low after the bounce and is effective as an approach or change-of-pace ball. A flatter slice. This means less open face, more forward swing direction. This means picks up pace and penetrates deeper. This makes it useful as a neutralizer against heavy topspin or as a drive rather than a defensive lob.
Example
球员切削打出一记反手过渡球，让球低平滑行，迫使对手向上挥拍，为自己争取时间上前逼近网前。
Why it matters
切削是少数能同时改变力度、旋转和弹跳高度的击球之一。在上旋打法中加入一记可靠的反手切削，能创造出对手必须不断重新判读的套路。
How it shows up on video
Watch the racquet path direction. This means a slice shows the head moving from clearly above the contact point to below it through the hitting zone, with the face visibly open (tilted back) at contact. After contact, the ball trajectory will typically be flatter than a topspin shot and will skid low rather than kicking up after the bounce.
Common mistakes
- Chopping too steeply. This means swinging the racquet nearly straight down rather than through the ball at a shallower angle. This means producing a very short, slow slice with no depth or penetration.
- Closing the racquet face too much at contact, which generates topspin instead of backspin and nullifies the intended shot entirely.
- Reaching for the slice defensively when an aggressive topspin drive was the correct choice. This means using the slice as a default when under pressure. This gives the opponent an easy high ball to attack.
- Rolling the wrist at contact to add power, which closes the face and again removes the backspin that makes the shot effective.
In SwingVantage Motion Lab
SwingVantage can identify racquet path direction and estimate ball rotation after contact from video. A slice shows a distinctly high-to-low path with an open face angle at contact. This means visible in frame-by-frame analysis as a different swing signature from a topspin or flat drive.
Across sports
- Tennis
- A deliberate backspin stroke (high-to-low).
- Golf
- An unwanted left-to-right curving ball flight.
Frequently asked questions
网球中的切削(slice)和高尔夫中的slice有什么区别?
“slice”是一个跨项目的同音异义词——这个词在两项运动中的含义完全不同。在网球中，切削是一种由打开的拍面由高到低运动而产生的、刻意、受控的下旋击球。在高尔夫中，slice是一种不受欢迎的弯曲失误球，由撞击瞬间打开的杆面配合由外向内的挥杆路径造成(对右手球手而言表现为从左到右弯曲)。两者在机制上毫无共同之处;共用同一个词只是历史上的巧合。
我应该在什么时候用切削，而不是上旋?
当你想改变相持的力度和弹跳高度时;当上网逼近、需要一记又低又滑行、迫使对手向上挥拍的球时;当防守一记重上旋来球、需要中和力量时;或者当球非常低、打上旋驱动球风险太大时，使用切削。当你处于进攻位置、球处于舒适高度时，应避免使用切削——上旋或平击驱动球通常在进攻上更有效。
Related terms
Related guides & benchmarks
Put this into your swing
SwingVantage can spot this in your own swing — free to start.
See a sample Tennis report first